Curves in below P-V diagram represent isotherms. There are three states A, B, C of an ideal gas. Statement-1 : As the ideal gas is taken from A to B to C along a process represented by straight line A

Question

Curves in below P-V diagram represent isotherms. There are three states A, B, C of an ideal

gas.

Statement-1 : As the ideal gas is taken from A to B to C along a process represented by straight line

ABC its temperature first increases and then decreases.

Statement-2 : Along isotherms as pressure increases volume decreases.

TestHub · Accepted Answer

Statement-1 is true because the process ABC moves from a lower isotherm (A) to a higher isotherm (around B) and then back to a lower isotherm (C), indicating temperature first increases then decreases.

Statement-2 is also true,

as Boyle's Law ( $P V = co n s t an t$ for an isotherm) implies $P \propto 1/ V$ .

However, Statement-2 does not explain Statement-1.

Physics - Heat & Thermo Question with Solution | TestHub

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