Question
Consider a 3.0 kg copper body. How much heat is required to raise its temperature by 10°C? [s= 0.09 cal/g/°C]. [Ans. 2700 cal]
Answer
To calculate the heat required to raise the temperature of a 3.0 kg copper body by 10°C, we can use the formula:
Heat = Mass × Specific heat × Temperature change
Given:
Mass of copper body (m) = 3.0 kg
Specific heat of copper (s) = 0.09 cal/g/°C
Temperature change (ΔT) = 10°C
First, we need to convert the mass from kilograms to grams:
Mass = 3.0 × 1000 = 3000 g
Heat = 3000 × 0.09 × 10
Heat = 2700 cal
Therefore, the amount of heat required to raise the temperature of the 3.0 kg copper body by 10°C is 2700 cal.
