Question

Calculate the amount of heat released when 27.0 g H2O is cooled from a liquid at 314 K to a solid at 263 K. The melting point of H2O is 273 K. Other useful information about water is listed below.

Cp,liquid = 4.184 J/(g•K)

Cp,solid = 2.093 J/(g•K)

ΔHfusion = 40.7 kJ/mol

Answer 1

How many moles of H2O are present in the sample?

Answer 2

What equation would I use?

Answer 3

mole is eqaul to mass over molar mass do that for water 27/18

Answer 4

formula is Q=msdelataT