Question

Five moles of a gas is put through a series of changes in a cyclic process as show in the graph.
Processes $A\to B,B\to C\text{and}C\to A$ respectively are:

• A. Isochoric, Isobaric, Isothermal
• B. Isobaric, Isochoric, Isothermal
• C. Isothermal, Isobaric, Isochoric
• D. Isochoric, Isothermal, Isobaric

Answer 1

The correct option is A Isochoric, Isobaric, Isothermal

$A\to B,$ Volume is not changing or V = constant. Such a process is called an Isochoric process.

$B\to C,$ Volume vs temperature plot is a straight line with volume and temperature being directly proportional which happens at constant pressure. Such a process is called as Isobaric process.

$C\to A,$ Temperature is constant. Such a process is called an Isothermal process.