Question: What is the specific heat capacity of a substance if 500 J of heat raises the temperature of 2 kg of the substance by 10°C?

Options:

1. 25 J/kg°C
2. 50 J/kg°C
3. 100 J/kg°C
4. 200 J/kg°C

Correct Answer: 50 J/kg°C

Solution:

Using Q = mcΔT, we have 500 = 2 * c * 10, thus c = 500 / 20 = 25 J/kg°C.