How to Calculate Change in Heat Energy from Temperature Change

Determine the change in heat energy for 0.2 kg ice from -20°C to -10°C. The specific heat for ice is 2092 J/kg°C.

• 4184 J

• -8414 J

• -4184 J

• 8414 J

Determine the change in heat energy for 1.7 kg water from 25°C to 50°C.

• -175728 J

• -167360 J

• 182004 J

• 177820 J

Determine the change in heat energy for 0.95 kg steam from 120°C to 130°C. The specific heat for steam is 2008.32 J/kg°C.

• +19455.6 J

• +19079.04 J

• -19455.6 J

• -19079.04 J

After leaving 0.3 kg hot coffee on the table, it cools down from 90°C to 50°C in certain time. Consider the specific heat of coffee is the same as that of water (4184 J/kg°C), determine the change in heat energy.

• -31380 J

• +31380 J

• +50208 J

• -50208 J

Determine the change in heat energy for 0.05 kg ice from 0°C to -15°C. The specific heat for ice is 2092 J/kg°C.

• -3138 J

• +1569 J

• -1569 J

• +3138 J

Determine the change in heat energy for 1 kg water from 27°C to 37°C. The specific heat of water is 4184 J/kg°C.

• 41840 J

• -10 J

• -41840 J

• 10 J

Determine the change in heat energy for 1.5 kg water from 17°C to 52°C. The specific heat of water is 4184 J/kg°C.

• -219660 J

• 219.660 J

• -219.660 J

• 219660 J

Determine the change in heat energy for 2.5 kg water from 77°C to 27°C. The specific heat of water is 4184 J/kg°C.

• -523 J

• 523 J

• -523000 J

• 523000 J

How much heat energy is required to brew 200 g of coffee from 25°C to 80°C? Consider the specific heat of coffee is the same as that of water, which is 4184 J/kg°C.

• -41840 J

• 46024 J

• 37656 J

• -50208 J

Determine the change in heat energy for 1 kg aluminium from 50°C to 55°C. Specific heat of Aluminium is 887 J/kg°C.

• +4345 J

• +4435 J

• -4345 J

• -4435 J