Question

For an ideal gas isothermal process what is the work done by the gas from 1 m^3 to 2 m^3 at 300 K?

(a) 0.69 kJ

(b) 1.24 kJ

(c) 1.73 kJ

(d) 2.45 kJ

The question was posed to me in exam.

My question is based upon Simplifications of General Energy Balance topic in portion 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

The correct answer is (c) 1.73 kJ

To explain I would say: W = RTln (V2/V1) = 8.314*300 ln (2/1) = 1.73 kJ.