Question

If Cp of liquid benzene is 15 J/^oC, what is the enthalpy change of water from 5^oC to 10^oC?

(a) 15 J

(b) 50 J

(c) 75 J

(d) 90 J

This question was posed to me in an interview.

My question is based upon Phase Transitions topic in division Introduction to Energy Balances for Processes without Reaction and Calculation of Enthalpy Changes of Basic Chemical Engineering

Answer 1

Correct option is (c) 75 J

The explanation is: ∆H = 5∫^1015.dT = 75 J.