Two gases \(A\) and \(B\) are filled at the same pressure in separate cylinders with movable pistons of radius \(r_A\) and \(r_B,\) respectively. On supplying an equal amount of heat to both the systems reversibly under constant pressure, the pistons of gas \(A\) and \(B\) are displaced by \(16~ \text{cm}\) and \(9~ \text{cm},\) respectively. If the change in their internal energy is the same, then the ratio \(r_A / r_B\)  is equal to:
1. \(\dfrac{2}{\sqrt{3}}\) 2. \(\dfrac{\sqrt{3}}{2}\)
3. \(\dfrac{4}{3}\) 4. \(\dfrac{3}{4}\)
Subtopic:  Work Done by a Gas |
From NCERT
NEET - 2025
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A thermodynamic system is taken through the cycle \(abcda.\) The work done by the gas along the path \(bc\) is:
                     
1. \(30~\text J\)
2. \(-90~\text J\)
3. \(-60~\text J\)
4. zero
Subtopic:  Work Done by a Gas |
 68%
From NCERT
NEET - 2024
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For the given cycle, the work done during the isobaric process is:

            
1. \(200\) J
2. zero
3. \(400\) J
4. \(600\)
Subtopic:  Work Done by a Gas |
 56%
From NCERT
NEET - 2023
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