Question

A system is said to be in thermodynamic equilibrium if it maintains which of the following equilibriums?

(a) Mechanical and phase

(b) Thermal and chemical

(c) Thermal, mechanical and chemical

(d) Thermal, phase, mechanical and chemical

This question was posed to me in an interview.

Question is from Single Variable Problems in section Single Variable Problems of Finite Element Method

Answer 1

The correct option is (c) Thermal, mechanical and chemical

To explain: Thermodynamic equilibrium describes a system whose properties will not change without some sort of outside interference. In other words, a system in thermodynamic equilibrium will not change unless something is added or subtracted from it. Thus, it should be under Thermal, mechanical and chemical equilibrium.