Question

The specific volume of a gas is 5 m^3/Kg, at 10 Pa, H = 50 J/Kg and at 20 Pa, H = 100 J/Kg, what is the heat transferred to the system?

(a) 0

(b) 50 J/Kg

(c) 100 J/Kg

(d) 150 J/Kg

The question was asked in homework.

Question is taken from Application of the Energy Balance to Closed Systems topic in chapter Application of Energy Balances in the Absence of Chemical Reactions and Energy Balances: How to Account for Chemical Reaction of Basic Chemical Engineering

Answer 1

Correct option is (a) 0

The explanation is: Q = ∆H – V∆P = (100 – 50) – 5(20 – 10) = 0.