Specific Heat Practice Problems

Heat Energy (Q): 63,536

If 200 grams of water is to be heated from 24.0�C to 100�C to make a cup of tea, how much heat must be added? The specific heat of water is 4.18 J/g�C

Mass of Substance (M): 7.974

How many grams of water would require 2200 joules of heat to raise its temperature from 34�C to 100�C? The specific heat of water is 4.18 J/g�C

Specific Heat (C): 0.213

A block of aluminum weighing 140g is cooled from 98.4�C to 62.2�C with the release of 1080 joules of heat. From this data,calculate the specific heat of aluminum.

Heat Energy (Q): 13, 794

100.0 mL of 4.0�C water is heated until its temperature is 37�C. If the specific heat of water is 4.18 J/g�C, calculate the amount of heat energy needed to cause this rise in temperature.

Specific Heat (C): 0.03

A total of 54.0 Joules of heat are observed as 58.3g of lead is heated from 12.0�C to 42.0�C. From this data, what is the specific heat of lead?

Heat Energy (Q): 27, 912.5

The specific heat of wood is 2.03 J/g�C. How much heat is needed to convert 550g of wood at -15.0�C to 10.0�C?

Heat Energy (Q): 58,050 J

What is the total amount of heat needed to change 2.25 kg of silver at 0.0�C to 200.0�C? The specific heat of silver is 0.129 J/g�C

Mass of Substance (M): 12.10 g

Granite has a specific heat of 800 J/g�C. What mass of granite is needed to store 150,000 J of heat if the temperature of the granite is to be increased by 15.5 �C?

Final Temperature: 15.02�C

A 55 kg block of metal has an original temperature of 15.0�C and 0.45 J/g�C. What will be the final temperature of this metal if 450 J of heat energy are added?