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A container of melted paraffin wax is allowed to stand at room temperature until the was solidifies what is the direction of heat flow as the liquid wax solidifies?
Wiki User
∙ 10y ago
To solidify, the paraffin has to get rid of excess heat, so the heat flow is outward.
Wiki User
∙ 10y ago
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What is the difference between paraffin oil and oil?
Paraffin oil is a derivative of petroleum. In solid forms, paraffin oil is a solid with 20-40 atom molecules. Petroleum is not a solid.
Density of candle wax?
Candle wax or paraffin has a density of about 0.9 g/ml , this is lighter than water.
Data for young modulus of candle wax?
The data for Young's modulus of candle wax (paraffin wax) has been previously measured to have a value of 61.4 MPa.
Does candal wax float and what is its density?
Paraffin wax has a density of roughly 0.8 gm/cm3 . It will float in any fluid whose density is greater than roughly 0.8 gm/cm3.
What is an example of direct energy?
An example of concentrated energy is fuel like petrol, diesel and paraffin. One kilogram of these fuels requires about 3 kg of oxygen to burn with. But a car, bus or plane does not have to carry the oxygen with it because it can be taken straight from the atmosphere. Therefore the fuel tank on a transport vehicle contains unusually concentrated energy.
What is the state of paraffin oil at a temperature of 450?
Paraffin oil is a gas at 450 oC.
Why we use paraffin for determination of melting point?
Liquid paraffin is used in thermostatic baths, to maintain a constant temperature.
Does paraffin cool faster than water in terms of temperature?
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What is the physical state of paraffin wax at room temperature?
It is a solid
Are paraffin wax melts harmful?
YES, unless its container specifically states otherwise, such as some candle-making waxes. Paraffin waxes such as Gulf Wax are commonly used in making chocolate candies. According to wikipedia, "Paraffin Wax is a shiny coating used in candy-making; although edible, it is nondigestible, passing right through the body without being broken down." Also see: http://homecooking.about.com/od/cookingfaqs/f/faqparaffin.htm http://www.baking911.com/pantry/other.htm#PARAFFIN%20WAX http://en.wikipedia.org/wiki/Paraffin#Wax
Why the temperature of paraffin rises up than water?
it has less denser than water
Can paraffin substitute for glycerin?
Glycerin is used in many soaps and cosmetic products. Paraffin becomes very brittle at room temperature, so it would not be beneficial to substitute glycerin for it.
What is paraffin examination?
paraffin is , you can say that paraffin is candle just extract it's thread and your paraffin is ready to use
At what temperature does paraffin ignite?
The flash point of kerosene is between 37 and 65 °C (100 and 150 °F)
What is the percentage of paraffin in paraffin wax?
It is almost 100% paraffin, it is made from wax and water.
What gas is produced when you burn paraffin?
Both carbon dioxide and water are produced as gases when paraffin is burned, but of these two, only the carbon dioxide is still a gas when it equilibrates to standard temperature and pressure.
What are the simplest investigatory projects in physics and would only take a few hours to do?
One simple experiment is to verify Newton's Law of Cooling. All you need is a container of hot water and a thermometer, in a room which is at a steady temperature. Measure the temperature every minute whilst the water is cooling, and plot a graph of temperature against time. Then from the graph estimate the rate of cooling (the slope of the graph) every few minutes, and plot rate of cooling against difference in temperature between water and room (ambient). From the result deduce how rate of cooling varies with temperature. If you can obtain some paraffin wax, you can show the effect of latent heat. Melt the wax carefully, but don't make it too hot, it could burn. Then let it cool and plot temperature against time as for water. When the wax starts to solidify you will see the graph change slope, this is due to latent heat being released as the wax solidifies.
