How many calories must be added to 2.5 g of water at 10°C to heat it to 85.5°C?
A) 75.5 calories
B) 188.75 calories
C) 264.25 calories
D) 325 calories
E) None of these is correct; it is impossible.

Question

Quizplus · Accepted Answer

The specific heat capacity of water is 1 calorie/g°C. The temperature change is 85.5°C - 10°C = 75.5°C. Therefore, the heat required is 2.5 g * 75.5°C * 1 cal/g°C = 188.75 calories.

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