Concept 3: Thermal Energy

Multiple Choice

The air in a living room has a mass of 60 kg and a specific heat of 1,020 J/kg*C. What is the change in thermal energy of the air when it warms from 20C to 25C?

• 306,000 J

• 0.15 kg

• 1,020 J

• 5 C

Multiple Choice

The thermal energy of water in a mug increases by 12,552 J when the water is heated from 20C to 40C. If the specific heat of eater is 4,184 J/kg*C. What is the mass of the water?

• 306,000 J

• 0.15 kg

• 1,020 J

• 5 C