A system absorb 10 kJ of heat at constant volume and its temperature rises from 27°C to 37°C. The value of ΔU is.

Δ Q = Δ U + Δ W

At constant V

Δ W = 0

Δ U = Δ Q = 1OKJ

Hence,the correct option is (b) i.e. 10KJ