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 = (625 g)(0.79 J/(g·K))ΔTΔT = 22.1°CNew temperature = 25°C + 22.1°C = 47.1°C

When Karl Kaveman Adds Chilled Grog to His New Granite