Question

Which of the following allows complete conversion of mechanical energy?

(a) Frictionless process

(b) Dissipative process

(c) Mixing of components

(d) All of the mentioned

This question was addressed to me in class test.

This question is from Mechanical Energy Balance topic in section Energy Balances that Include the Effects of Chemical Reaction, Ideal Processes, Efficiency and the Mechanical Energy Balance and Heats of Solution and Mixing of Basic Chemical Engineering

Answer 1

Correct option is (a) Frictionless process

To explain I would say: A frictionless process is reversible so it allows complete conversion of mechanical energy.