2) An insulated container at taIs quickly added to the container and it is resealed. Assume 0°C holds 2 kg of water at 0° C. 2 kg of ice the addi amount of heat enters or leaves the container while the ieers the material with an extremely low specific heat so no of heat energy is transferred into or out of the container ng of the ice happens quickly enough that no noticeable is being added. Also assume that no noticeable amount of heaainer is sealed container during our experiment. The container is made of noticeable amoun walls a) What will happen, will: i) ice melt:; i) water freeze b) How much ice will melt, or how much water will freeze? c) What is the final temperature of the ice and/or water?
Solution
a) water Freeze
b) let m is the amount water that freezes.
Apply heat lost by water = heat gained by Ice
m*Lf = m_Ice*C_Ice*( 0 - (-20))
m = m_Ice*C_Ice*20/Lf
= 2*2108*20/(3.33*10^5)
= 0.253 kg <<<<<<------------Answer
c) Final temperature is 0 degrees celsius
.
2) An insulated container at taIs quickly added to the container and i.docx
1. 2) An insulated container at taIs quickly added to the container and it is resealed. Assume 0°C
holds 2 kg of water at 0° C. 2 kg of ice the addi amount of heat enters or leaves the container
while the ieers the material with an extremely low specific heat so no of heat energy is
transferred into or out of the container ng of the ice happens quickly enough that no noticeable is
being added. Also assume that no noticeable amount of heaainer is sealed container during our
experiment. The container is made of noticeable amoun walls a) What will happen, will: i) ice
melt:; i) water freeze b) How much ice will melt, or how much water will freeze? c) What is the
final temperature of the ice and/or water?
Solution
a) water Freeze
b) let m is the amount water that freezes.
Apply heat lost by water = heat gained by Ice
m*Lf = m_Ice*C_Ice*( 0 - (-20))
m = m_Ice*C_Ice*20/Lf
= 2*2108*20/(3.33*10^5)
= 0.253 kg <<<<<<------------Answer
c) Final temperature is 0 degrees celsius
