Question

A substance has specific heat capacity 0.5 cal/g 0C. What amount of heat will be required to increase the temperature of 2 kg

of this substance by 30 0C​

Answer 1

The heat required to increase the temperature by 30°C is 30 kcal

Explanation:

Given

Specific heat capacity C = 0.5 cal/g°C

Mass of the substance m = 2 kg = 2000 g

Change in temperature of the substance

ΔT = 30°C

Using the formula of the hear required

$Q=mc\Delta T$

$Q=2000\times 0.5\times 30$

$\implies Q=30000$ cal

or, $Q=30$ kcal

Hence, the heat required to increase the temperature by 30°C is 30 kcal

Hope this answer is helpful.

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