Specific Heat and Energy Calculations Quiz

What is the specific heat of iron if 985 J of energy is needed to raise the temperature of 158.5 grams from 10.0 to 24.0°C?

• 0.450 J/g°C

• 0.444 J/g°C

• 0.500 J/g°C

• 0.300 J/g°C

A 4.11 gram sample of silicon uses 11.1 J of energy, and the temperature change is 3.8°C. What is the specific heat of the silicon?

• 0.711 J/g°C

• 0.500 J/g°C

• 0.650 J/g°C

• 0.800 J/g°C

How much heat/energy is required to raise the temperature of a 20.0 g sample of iron from 26.0 °C to 73.0 °C if the specific heat is 0.444 J/g°C?

• 420 J

• 415 J

• 417 J

• 425 J

What is the temperature change of an 84.0 g sample of mercury if 450.0 J of heat is added and the specific heat is 0.138 J/g°C?

• 38.8°C

• 39.5°C

• 40.0°C

• 41.0°C

How much energy is absorbed by a container of 545 g of water in order to raise the temperature from 20.0°C to 30.0°C? The specific heat of water is 4.18 J/g°C.

• 22,789 J

• 22,781 J

• 22,785 J

• 22,790 J

What is the temperature change of a 5.0 g sample of water (specific heat = 4.18 J/g°C) when 1000.0 J of energy is released?

• 47.8°C

• 23.9°C

• 12.0°C

• 5.0°C

How much heat is required to raise the temperature of a 125 g aluminum from 25.0°C to 100.0°C if the specific heat is 0.899 J/g°C?

• 8428.13 J

• 11236.25 J

• 843.63 J

• 1123.63 J

If it takes 31,500 J to heat 875 grams of water, what is the temperature change? The specific heat of water is 4.18 J/g°C.

• 8.6°C

• 9.0°C

• 10.0°C

• 8.0°C

A 100.0 gram sample of aluminum that has a specific heat of 0.899 J/g°C absorbs 1379 J of energy. What is the temperature change?

• 15.3°C

• 12.3°C

• 10.3°C

• 5.3°C

A 50.0 g sample of material requires 2759.0 J of heat to have its temperature raised from 20.0 to 85.0°C. What is the specific heat of this material?

• 0.847 J/g°C

• 0.947 J/g°C

• 0.747 J/g°C

• 0.647 J/g°C