Question

This curve is drawn for a given mass of a gas. This curve represents an

• A. Isochore
• B. Isobar
• C. Isotherm
• D. Isotope

Hint:

Isothermal curve follows \(PV=\text{constant}\).

Answer 1

The Correct Option is C

Concept:
Different thermodynamic processes are represented by characteristic curves.
Step 1:
In isothermal process: \[ PV=\text{constant} \] Temperature remains constant.
Step 2:
The graph between pressure and volume becomes rectangular hyperbola.
Step 3:

• Isochore: constant volume
• Isobar: constant pressure
• Isotope is unrelated term
Step 4:
Thus the curve represents: \[ \boxed{\text{Isotherm}} \] \[ \boxed{\text{Correct Option = (3)}} \]