WB JEE 2026 | Thermodynamics Question 2 | Chemistry

WB JEE 2026

MCQ (More than One Correct Answer)

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1 mole of an ideal gas undergoes the following processes：

Process $A \rightarrow$ Isothermal expansion at 400 K from volume $\mathrm{V}_1$ to volume $\mathrm{V}_2$ ，such that $\mathrm{V}_2=4 \mathrm{~V}_1$

Process $B \rightarrow$ Adiabatic expansion from volume $\mathrm{V}_1$ to volume $\mathrm{V}_2$ ，such that $\mathrm{V}_2=4 \mathrm{~V}_1$

Consider the following statements and select the correct one／s．

Work done by gas in Process $A$ is greater than in Process $B$ ．

Final temperature in Process $B$ is less than 400 K ．

Change in internal energy is 0 in Process $A$ but non－zero in Process $B$ ．

Heat absorbed by the gas is positive in Process $A$ but zero in Process $B$ ．

WB JEE 2025

MCQ (More than One Correct Answer)

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$X$ is an extensive property and $x$ is an intensive property of a thermodynamic system. Which of the following statement(s) is (are) correct?

$x \mathrm{X}$ is extensive.

$\frac{x}{X}$ is intensive.

$\frac{X}{x}$ is extensive.

$\frac{\mathrm{dX}}{\mathrm{dx}}$ is intensive.

WB JEE 2020

MCQ (More than One Correct Answer)

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For spontaneous polymerisation, which of the following is (are) correct?

$$\Delta $$G is negative

$$\Delta $$H is negative

$$\Delta $$S is positive

$$\Delta $$S is negative

WB JEE 2018

MCQ (More than One Correct Answer)

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Among the following, the extensive variables are

H (Enthalpy)

p (Pressure)

E (Internal energy)

V (Volume)

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