question_answer

200 g water is heated from 40°C to 60°C. Ignoring the slight expansion of water, the change in its internal energy is closed to (Given specific heat of water = 4184 J/kg/K):                                                         [JEE ONLINE 09-04-2016]

A)  16.7 kJ

B)       167.4 kJ

C)  4.2 kJ  

D)       8.4 kJ

Correct Answer: A

Solution :

[a]