Why Doesnt Vodka Freeze Alcohol vs. Freezing Point

People who drink vodka commonly keep it in the freezer. The vodka gets nice and cold, yet it doesnt freeze. Have you ever wondered why that is? Will the vodka ever freeze? The Freezing Point of Vodka Vodka consists primarily of water and ethanol (grain alcohol). Pure water has a freezing point of 0 ºC or 32 ºF, while pure ethanol has a freezing point of  -114 ºC or -173 ºF. Because its a combination of chemicals, vodka doesnt freeze at the same temperature as either water or alcohol. Of course, vodka will freeze, but not at the temperature of an ordinary freezer. This is because vodka contains enough alcohol to lower the freezing point of water below the -17 °C of your typical freezer. Its the same freezing point depression phenomenon that occurs when you put salt on an icy walk or antifreeze in your car. In the case of Russian vodka, which is standardized to 40% ethanol by volume, the freezing point of the water is lowered to -26.95 ° C or -16.51 ° F. That vodka might freeze outdoors over the course of a Siberian winter, and you can freeze it with an industrial freezer or using liquid nitrogen, but it will remain liquid in a normal freezer, which typically has a temperature no lower than  Ã¢â‚¬â€œ23 ºC to –18 ºC (-9 ºF to 0 ºF). Other spirits behave the same way as vodka, so you could put your tequila, rum, or gin in the freezer with pretty much the same result. Beer and wine will freeze in a home freezer because they contain much lower levels of alcohol than youll find in distilled liquors. Beer is typically 4-6% alcohol (sometimes as high as 12%), while wine runs around 12-15% alcohol by volume. Using Freezing to Enrich the Alcohol Content of Vodka One handy trick for increasing the alcohol percentage of vodka, particularly if its lower in alcohol content than 40 proof, is to apply a technique known as freeze distillation. This can be achieved by pouring the vodka in an open container, such as a bowl, and placing it in the freezer. Once the liquid cools below the freezing point of water, one or more ice cubes may be added to the bowl. The ice cubes serve as crystallization nuclei, much like using a seed crystal to grow larger crystals for a science project. The free water in the vodka will crystallize (form ice), leaving behind a higher concentration of alcohol. Storing Vodka in the Freezer Its probably a good thing vodka doesnt ordinarily freeze in a freezer, because if it did, the water in the liquor would expand. The pressure from the expansion could be enough to shatter the container. This is a good point to keep in mind if youre considering adding water to vodka to freeze it out and increase proof. Dont overfill the bottle or it will break when the water freezes! If you do freeze an alcoholic beverage, choose a flexible plastic container to minimize the risk of accidents or breakage. For example, choose a bag similar to the type used for premixed frozen cocktails.

BINOM.DIST in Excel

Calculations with the binomial distribution formula can quite tedious and difficult. The reason for this is due to the number and types of terms in the formula.  As with many calculations in probability, Excel can be utilized to expedite the process. Background on the Binomial Distribution The binomial distribution is a discrete probability distribution. In order to use this distribution, we need to make sure that the following conditions are met: There are a total of n independent trials.  Each of these trials can be classified as a success or failure.The probability of success is a constant p. The probability that exactly k of our n trials are successes is given by the formula: C( n, k) pk (1 - p)n – k. In the above formula, the expression C( n, k) denotes the binomial coefficient. This is the number of ways to form a combination of k elements from a total of n. This coefficient involves the use of the factorial, and so C(n, k) n!/[k!(n – k)! ]. COMBIN Function The first function in Excel related to the binomial distribution is COMBIN. This function calculates the binomial coefficient C( n, k), also known as the number of combinations of k elements from a set of n. The two arguments for the function are the number n of trials and k the number of successes. Excel defines the function in terms of the following: COMBIN(number, number chosen) Thus if there are 10 trials and 3 successes, there are a total of C(10, 3) 10!/(7!3!) 120 ways for this to occur. Entering COMBIN(10,3) into a cell in a spreadsheet will return the value 120. BINOM.DIST Function The other function that is important to know about in Excel is BINOM.DIST. There are a total of four arguments for this function in the following order: Number_s is the number of successes. This is what we have been describing as k.Trials are the total number of trials or n.Probability_s is the probability of a success, which we have been denoting as p.Cumulative uses an input either of true or false to calculate a cumulative distribution. If this argument is false or 0, then the function returns the probability that we have exactly k successes. If the argument is true or 1, then the function returns the probability that we have k successes or less. For example, the probability that exactly three coins out of 10 coin flips are heads is given by BINOM.DIST(3, 10, .5, 0). The value returned here is 0.11788. The probability that from flipping 10 coins at most three are heads is given by BINOM.DIST(3, 10, .5, 1). Entering this into a cell will return the value 0.171875. This is where we can see the ease of using the BINOM.DIST function. If we did not use software, we would add together the probabilities that we have no heads, exactly one head, exactly two heads or exactly three heads. This would mean that we would need to calculate four different binomial probabilities and add these together. BINOMDIST Older versions of Excel use a slightly different function for calculations with the binomial distribution. Excel 2007 and earlier use the BINOMDIST function. Newer versions of Excel are backward compatible with this function and so BINOMDIST is an alternate way to calculate with these older versions.

The Impact of Weak System Security Free Essays

In addition to this, it is not just the organization itself that can feel the brunt of the impact of weak security. Employees whose responsibility it is to ensure that there are no weaknesses an also be hit hard. Generally, it is up to managers to ensure that there are no weaknesses in a systems security; or at least to reduce the risk of negative impact/damage on the company. We will write a custom essay sample on The Impact of Weak System Security or any similar topic only for you Order Now This means that if there is a major weakness is found in the system of an organization, managers could lose their jobs as a result of negligence etc. This then puts the managers in a situation where they are losing money, not just the company. Loss of Customers- Weak system security can also result in the loss of customers as people will not want to use a business that has problems with their security s their personal details or information may be at risk. For example, if a bank has a weakness in its security, and this weakness is exploited by hackers; then customers’ information may be stolen and used to purchase goods under their name. This goes against the organization’s key responsibilities to its customers as they have a responsibility to keep their customers data safe and hidden from unrestricted access. This means that if people’s data is stolen or lost then they will more than likely move to a rival organization where they think that their data will be safer. This will result in the loss of customers from the company and a massive lost in trust; possibly resulting in the loss of jobs as there aren’t enough customers to make a profit for the company. Increased Costs- An increase in costs can also be incurred from the weakness in a systems security. This can be caused as a result Of needing a specialist engineer etc to come in to the company to see where the weakness in the systems security is. This may cost a lot of money as it is; and more money will need to be spent in order to get another specialist to come out and fix the problems that are there. In addition to this, customers may wish to receive mom sort of compensation as payment for the information that the company has lost about them. Or Image- A poor company image can be another nasty effect of weak system security. If a major company has even one or two system weaknesses it can reflect very badly on its image as people will start to lose trust in the overall protection that the company offers to its customers. A poor company image can have a massive impact on the ability for a company to make enough money to actually make a profit on the goods they are making/selling. A poor image may then result in the loss of customers and earnings from the many. It is therefore vital that the company ensures that there are no weaknesses in its security so that their company image stays strong. All of the above impacts can be related to the organizations key responsibilities to their Customers. The Organization has a massive responsibility to ensure that all of their customers’ personal data is kept secure, and that only the people who are authorized to access it are able to and only at the right times. This links in with the data protection act of 1998, as companies must provide suitable means of protecting customers’ data. How to cite The Impact of Weak System Security, Papers

Cypop 5 free essay sample

It helps children to deal with difficult circumstances such as emotional stress or medical treatments. Play gives children chance to let off steam and have fun. Children learn when they are in a safe and caring environment. They are stimulated through play. Babies and young children develop best when they are in a caring relationship with an adult. A baby will learn to walk faster when they have a safe pair of arms to walk towards and learn to talk when they have an adult who listens to them and responds accordingly. I aim to provide children with an environment that is caring, fun and stimulating. I aim to expand each childs individual, intellectual, physical and emotional capacities within a secure environment where each child, will be confident and settled. I will implement ideas from the EYFS and I will provide activities/opportunities that support the six main learning areas which are : * Knowledge Understanding Of the World * Personal social and emotional development * Communication language and literacy * Creative Development * Physical Development * Problem solving, Reasoning and Numeracy. Each child will be able to choose their own activities and access continuous provision throughout these six areas. Activities will be both planned and spontaneous according to your child’s preference. My weekly plan will be dependent on the children in my care and their ages and stages of development although I will be attending various groups and clubs within the local area that I live. Sample weekly plan: Morning afternoon Monday outdoor playchildren’s centre childminders group Tuesday -soft indoor play (wacky)creative play/ arts and crafts Wednesday-country park/ play areachildren’s centre playgroup Thursday baking/cookingoutdoor play Friday children’s centre groupindoor play at home Play can be constructed to fulfil areas of the EYFS, especially any areas where a child may be struggling, such as Playing with sand Texture, Weight, Pouring through containers, colours, measuring, shapes, make sand castles etc this can link to the following areas of the EYFS– personal development – personal, social and emotional development creative development – communication language and literacy All of the above would be flexible dependant on the children and any new sessions that can be accessed. Before any weekly plan can be made you would need to observe the children in your care to produce a plan that is appropriate to their development this will also help identify when to add/remove new toys/resources. I will use Natural resources and household items to provide stimulating play for the children to look after such as Sawdust and Bark for dinosaur play, jugs, funnels, guttering for water play, blankets pillows and throws and pegs for den building and communication friendly spaces etc. All children are individuals first, each with a unique profile of abilities. All planning starts with observing children in order to understand and consider their interests, development and learning. I will make systematic observations and assessments of each child’s achievements ,interests and learning styles. I will use these observations and assessments to identify learning priorities and plan relevant and motivating learning experiences for each child that I care for. I will match their observations to the expectations of the development matters principles. I will need to make regular observations on each child, using different techniques. These may include photographs, tick lists written observations and photographs. Where a child is not achieving their development goals I may then decide to speak to the parents regarding accessing other services for the child. All children need to feel valued and given the same options. I will ensure that children, parents/carers and visitors have equal rights and choices. Everyone will be given the respect that we all deserve as individuals. No person will be discriminated against and any remarks or comments of this kind will be challenged and discussed to ensure that it does not happen again. I welcome and include all children, their families and members of the community into my setting and I will ensure my setting is accessible to everyone. If a child in my care had specific requirements, certain changes would be made to the interior and exterior of my premises, dependent on the individuals circumstances. Certain activities are also adapted. All the children who come to my setting will have the same opportunities available to them. I am aware of the following legislation, The Children’s Act, The disability Act, UN convention on the Right of the Child, The children’s Bill 2004 and the Special Educational Needs Discrimination Act 2001. I will talk to different specialist groups, health visitors and read appropriate books to learn more about the condition and needs of the child, thus enabling me to provide the best possible care. If a child required assistance from a speech therapist or occupational therapist, then this could be arranged at my setting if it was more convenient for parents. I will do displays and have equipment in my setting that promotes a positive multi cultural attitude. I welcome parents/carers and visitors to talk about cultures, religions, food, clothes etc. I will never refuse or exclude a child. I will build on each child’s previous experience when accessing play opportunities. I will enable children to gain confidence and independence in play and identify individual requirements and provide appropriate support as/when required. I will also borrow and gain resources to enhance the inclusion of children with mobility or sensory difficulties. During snack time I will encourage children to help where appropriate eg. Older children could help butter crackers, or younger children could help divide fruit onto plates, I will encourage the children to help prepare our shopping list for the week for snacks and mealtimes and also encourage them to help with the meal plan for the week. During our week I will plan our activites a sample week could include : Monday : AM – Childrens centre drop in PM – Park weather dependant Tuesday AM – Wacky Warehouse PM – play at home LEGO, PUZZLES and nap time Wednesday AM –