Q. In the given p-V diagram, I is the initial state and F is the final state The gas goes from I to F by (i)IAF (ii)IBF (iii)ICF The heat absorbed by gas is

A) The same in all three processes
B) The same in (i) and (ii)
C) Greater in (i) than in (ii)
D) Greater in (iii) than in (ii)
Explanation

(d) Initial and final states are same an all the process
Hence, $\mathrm{\Delta}U = 0$ in each case
By $p\mathrm{\Delta}V = \mathrm{\Delta}Q = \mathrm{\Delta}W =$ Area enclosed by curve with volume axis
$\because\ \ \ \ \ \ \ (Area)_{1} < (Area)_{2} < (Area)_{3}$
$\Rightarrow \ \ \ \ \ \ \ Q_{1} < Q_{2} < Q_{3}$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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