When Karl Kaveman adds chilled grog to his new granite mug,he removes 10.9 kJ of energy from the mug.If it has a mass of 625 g and was at 25°C,what is its new temperature? Specific heat capacity of granite = 0.79 J/(g·K)

Question

Quizplus · Accepted Answer

The correct answer is A because the temperature change is calculated as follows:Q = mcΔT10.9 kJ = (0.625 kg)(0.79 J/(g·K))ΔTΔT = 22.2 KThe new temperature is therefore 25°C + 22.2 K = 47.2°C, which is closest to choice A, 3°C.

When Karl Kaveman Adds Chilled Grog to His New Granite