Question

What is an isothermal process?

Answer 1

Definition

1. An isothermal process is one that maintains a constant temperature.
2. Any heat movement into or out of the system must've been slow enough to keep the system in thermal equilibrium.
3. If a system comes into contact with a thermal reservoir externally, the system gradually adapts itself to the reservoir's temperature through heat exchange to preserve thermal equilibrium.

Examples of isothermal process

1. Isothermal processes include phase changes like melting or boiling.
2. Carnot engines uses isothermal processes.