Thermodynamics Question 7
Question 7 - 2024 (31 Jan Shift 1)
The given figure represents two isobaric processes for the same mass of an ideal gas, then
(1) $P_{2} \geq P_{1}$
(2) $P_{2}>P_{1}$
(3) $P_{1}=P_{2}$
(4) $P_{1}>P_{2}$
Show Answer
Answer: (4)
Solution:
$\mathrm{PV}=\mathrm{nRT}$
$\mathrm{V}=\left(\frac{\mathrm{nR}}{\mathrm{P}}\right) \mathrm{T}$
Slope $=\frac{\mathrm{nR}}{\mathrm{P}}$
Slope $\propto \frac{1}{\mathrm{P}}$
(Slope $){2}>(\text { Slope }){1}$
$\mathrm{P}{2}<\mathrm{P}{1}$
