Question

The specific heat capacity of water in SI system is

• A. 4.2 Jkg^-1K^-1
• B. 42 Jkg^-1K^-1
• C. 4200 Jkg^-1K^-1
• D. 420 Jkg^-1K^-1

Answer 1

The correct option is C

4200 Jkg^-1K^-1

Explanation for the correct option(s):

C. 4200 Jkg^-1K^-1

1. The specific heat capacity of a substance is the heat needed to raise the temperature of 1 Kg of the substance by 1K (or by 1°C).
2. In SI system, the unit of specific heat capacity is Jkg^-1K^-1.
3. The specific heat capacity of water in SI system is 4200 Jkg^-1K^-1.

So, option C is correct.