**CHM
2045C Module Seven Sample Exam **

**Module
Seven Part D: Enthalpy change with Phase Change/Ice Cube Problem 5 points**

**Phase
Change (3 points):**

1. Calculate the amount of heat necessary to melt **27.0 grams of ice at 0 ^{o}C**, if the

If I had the same amount of water
at 100^{o}C, calculate the amount of heat required to boil **27.0 grams of water** if the **heat of
vaporization of water is 2256 J/g**?

How much heat is required to
raise the temperature of the **27 grams of
water at 0 ^{o}C to 100^{o}C**, if the

**Ice
Cube Problem (2 points):**

If **27.0 grams of ice at 0 ^{o}C is **added
to an insulated