Physical Science Heat = mass • sp. heat • change in temp.
Specific Heat Problems I Q = m c DT
Solve the following problems using the
table of heat constants provided.
1. Calculate the amount of energy required to
heat 500.0 g of water from 5.0 C to 100.0 C.
2. Calculate the amount of heat required to
raise 2.6 kg of gold from 25.0 C to 46.0 C.
3. A 22.5 g sample of mystery alloy X requires
540.0 J of energy to heat it from 10.0 C to
92.0 C.
Calculate the specific heat of alloy X.
4. It takes 125 J of energy to heat a certain
sample of pure silver from 12.0 C to 15.2 C.
Calculate the mass of silver.
5. Calculate the amount of energy required to
heat 2.00 L of water from 18.5 C to 55.0 C.
6. 50.0 Joules of heat are applied to 10.00 g
of iron. What is the temp. change of
the iron?
7. How much energy is required to heat 5.0 x 104
kg of iron from 22 C to its boiling point?
8. A 25.00 g
sample of unknown metal changes from a temperature of 50.00 C to 109.00 C when
200.0 J of heat is applied. Determine
the identity of the metal.
9. 460.0 J of heat are applied to a 50.0 gram
sample of silver initially at 300.0 K.
What is the final temperature of the silver in degrees K and in degrees
C?