Question

The specific heat capacity of water in SI unit is :

• A. $4.2J{g}^{-1}{K}^{-1}$
• B. $42J{g}^{-1}{K}^{-1}$
• C. $420Jk{g}^{-1}{K}^{-1}$
• D. $4200Jk{g}^{-1}{K}^{-1}$

Answer 1

The correct option is D $4200Jk{g}^{-1}{K}^{-1}$

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 $1^{0}C$).
The specific heat capacity of water is $4200J{kg}^{-1}{K}^{-1}$.