A typical infrared lamp emits 175 watts of energy. Calculate the total energy emitted in kcal by the infrared lamp after 12 hours. (1 watt = 1 J/s)

• A. 0.50 kcal
• B. 59 kcal
• C. 1.8×10³ kcal
• D. 5.0×10² kcal

Answer: (C)