# Energy & Enthalpy Review Worksheet

Thermochemistry Unit Worksheet # 2 Specific Heat

1.  It took 37.2 J of heat to raise the temperature of 11.2 g of a substance 13.4 º C. What is the specific heat of the substance? A 82 g sample of a metal requires 245 J of heat to raise the temperature from 137.0 º C to 139.6 º C. What is the specific heat of the substance?

2.  When 19.4 g of zinc absorbs 165 J of heat energy, what is the change in temperature of the metal?

3.  How many joules of energy are evolved if 15.6 g of aluminum is cooled by 87.0 º C?

4.  Determine the amount of heat released if 101.5 g of lead melted with a change in temperature of 64.3 º C.

5.  A sample of magnesium cooled from 100.6 º C to 27.6 º C and produced 4329 joules of energy. What was the mass of the sample?

6.  1850 joules of energy was produced by a sample of copper being heated from 45.3 º C to 102.0 º C. What was the mass of the sample?

7.  When 33.5 grams of aluminum absorbs 280 joules of heat energy, what is ΔT of the metal?

Thermochemistry Unit Worksheet # 2 Specific Heat

1.  It took 37.2 J of heat to raise the temperature of 11.2 g of a substance 13.4 º C. What is the specific heat of the substance? A 82 g sample of a metal requires 245 J of heat to raise the temperature from 137.0 º C to 139.6 º C. What is the specific heat of the substance?

2.  When 19.4 g of zinc absorbs 165 J of heat energy, what is the change in temperature of the metal?

3.  How many joules of energy are evolved if 15.6 g of aluminum is cooled by 87.0 º C?

4.  Determine the amount of heat released if 101.5 g of lead melted with a change in temperature of 64.3 º C.

5.  A sample of magnesium cooled from 100.6 º C to 27.6 º C and produced 4329 joules of energy. What was the mass of the sample?

6.  1850 joules of energy was produced by a sample of copper being heated from 45.3 º C to 102.0 º C. What was the mass of the sample?

7.  When 33.5 grams of aluminum absorbs 280 joules of heat energy, what is ΔT of the metal?

Thermochemistry Unit Worksheet # 2 Specific Heat

1.  It took 37.2 J of heat to raise the temperature of 11.2 g of a substance 13.4 º C. What is the specific heat of the substance? A 82 g sample of a metal requires 245 J of heat to raise the temperature from 137.0 º C to 139.6 º C. What is the specific heat of the substance?

2.  When 19.4 g of zinc absorbs 165 J of heat energy, what is the change in temperature of the metal?

3.  How many joules of energy are evolved if 15.6 g of aluminum is cooled by 87.0 º C?

4.  Determine the amount of heat released if 101.5 g of lead melted with a change in temperature of 64.3 º C.

5.  A sample of magnesium cooled from 100.6 º C to 27.6 º C and produced 4329 joules of energy. What was the mass of the sample?

6.  1850 joules of energy was produced by a sample of copper being heated from 45.3 º C to 102.0 º C. What was the mass of the sample?

7.  When 33.5 grams of aluminum absorbs 280 joules of heat energy, what is ΔT of the metal?

Thermochemistry Unit Worksheet # 2 Specific Heat

1.  t took 37.2 J of heat to raise the temperature of 11.2 g of a substance 13.4 º C. What is the specific heat of the substance? A 82 g sample of a metal requires 245 J of heat to raise the temperature from 137.0 º C to 139.6 º C. What is the specific heat of the substance?

2.  When 19.4 g of zinc absorbs 165 J of heat energy, what is the change in temperature of the metal?

3.  How many joules of energy are evolved if 15.6 g of aluminum is cooled by 87.0 º C?

4.  Determine the amount of heat released if 101.5 g of lead melted with a change in temperature of 64.3 º C.

5.  A sample of magnesium cooled from 100.6 º C to 27.6 º C and produced 4329 joules of energy. What was the mass of the sample?

6.  1850 joules of energy was produced by a sample of copper being heated from 45.3 º C to 102.0 º C. What was the mass of the sample?

7.  When 33.5 grams of aluminum absorbs 280 joules of heat energy, what is ΔT of the metal?