achieve questions 10

[405672459]

10) An ice cube with a mass of 54.8g at 0.0 C is added to a glass containing 445 of water at 45.0 C. Determine final temperature of the system at equilibrium. the specific heat capacity of water is Cs is 4.184 J/g C, and the standard enthalpy of fusion of water is 6.01*10^3 J/mol. Assume that no energy is transferred to or form the surroundings.

[Chem_Mod]

You need to focus on the fact that no energy is transferred to or from the surroundings. This means that any energy that is lost by the ice cube as it melts into liquid is gained by the water that it is dropped into. Remember the ice cube will be going through phase change, but there is no temperature change during phase changes, which requires energy. That energy is transferred from the liquid water, which DOES undergo a temperature change.

[Angela Denvir 1H]

This is in response to the chem_mod response. When you say that there is no temperature change during a phase change, are you referring to the part on the phase change graph in which the line is flat? Thanks!