Question

40. 4200 J of work is required for
(a) increasing the temperature of 10 g of water through
10°C
(b) increasing the temperature of 100 g of water through
10°C
(c) increasing the temperature of 1 kg of water through
10°C
(d) increasing the temperature of 500 g of water through 50
10°C​

Answer 1

Answer:

I think (c) is correct answer

Answer 2

Answer:

Work done to raise the temperature of 100 gm water through 10∘C is

W=JQ=4.2×(100×10−3×1000×10)=4200J