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How much heat is released when 250 g of water at 10 degrees Celsius freezes into ice and cools to -10 degrees Celsius?
Wiki User
∙ 11y ago
250g of water at 10C needs to lose 1 cal/g/C or 2500 calories to drop temperature to zero.
The latent heat of fusion of water is 80 calories per gram at 0C so, the water needs to lose 20,000 calories to turn to ice at 0C
Finally, the ice needs to lose 0.316 cal/g/C or 790 calories to drop to -10C
The total heat released is then 2500 + 20,000 + 790 = 23,290 calories
Wiki User
∙ 11y ago
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Does water that cools from 4 degrees celsius to 0 degrees celsius remain the same in density?
no. The density changes
At what temperature does dry ice change state?
CO2, or carbon dioxide, will freeze at -78 degrees Celsius at normal pressure.
What is neons melting point?
it is 100 degrees celsius it also cools off by putting cow poo on it and it lets off a nice purple colour try it
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Q = mc(dT) where dT = the change in temperature of the substance. Knowing that the specific heat of water (c) is 4.186 J/g C and that m = 5g we can find the solution. Q = (5g)(4.186 J/g C)(150-105)C Q = 941.85 J
Does water continue to expand as it cools after forming ice?
Water expands when it first freezes, but after that ice will contract as it continues to cool.
Is 25 degree Celsius considered cool?
calulate the amount of heat released when 25 gram of water at 25 degrees Celsius cools to 0.0 degrees celsius
Does water that cools from 4 degrees celsius to 0 degrees celsius remain the same in density?
no. The density changes
Why does water expands at 4 degree celsius?
Water has curious thermal properties. It contracts (gets denser) as it cools down just like other materials. However, at 4 degrees Celsius, it reaches the maximum density of 1 and then starts expanding if it is further cooled. Ice formed at zero degree Celsius is actually less dense than water and floats on it.
Describe the motion of the particle of a solid as it cools from -250 degrees Celsius to -273.15 degrees Celsius?
They move at a slower pace until they stop and froze into place.
What is unique about water as it gets colder and colder?
It's most dense at 4 degrees celsius. Get any lower and it takes up more volume. As a general rule, chemicals get denser as they get colder.
Two identical blocks of iron one at 10 degrees celsius and the other at 20 degrees celsius are put in contact suppose the cooler block cools to 5 degrees celsius and the warmer block warms to 25?
Violation of 2nd Law
When a liquid cools to be a solid?
It is called the freezing point or crystallization point. In water it is 0 degrees Celsius
What happens to water at 4 degrees Celsius?
at -4 degrees celsius if the water is a solid state of matter,it will turn into a liquid
At what temperature does dry ice change state?
CO2, or carbon dioxide, will freeze at -78 degrees Celsius at normal pressure.
How many joules of heat are lost by 3580 kg of granite as its cools from 41.2 degreees Celsius to -12.9 degrees Celsius?
q = [ 0.803 J/( g degrees Celsius)] ( 2 multiplied by '10 to the power of 6' grams) ( 19 degree Celsius) q = 3.1 multiplied by '10 to the power of 7' Joules
How do a rock became an igneous rock?
When magma cools and freezes
What happens to the of water vapor when the temperature of the gas cools to 100 degrees Celsius?
at standard pressure, the vapor condenses to liquid water at 100 C
