JEE Main 2025 (Online) 22nd January Evening Shift | Thermodynamics Question 15 | Chemistry

1

JEE Main 2025 (Online) 22nd January Evening Shift

MCQ (Single Correct Answer)

+4

-1

Match List - I with List - II.

	List - I (Partial Derivatives)		List - II (Thermodynamic Quantity)
(A)	$\left(\frac{\partial \mathrm{G}}{\partial \mathrm{T}}\right)_{\mathrm{P}}$	(I)	Cp
(B)	$\left(\frac{\partial \mathrm{H}}{\partial \mathrm{T}}\right)_{\mathrm{P}}$	(II)	$-$S
(C)	$\left(\frac{\partial \mathrm{G}}{\partial \mathrm{P}}\right)_{\mathrm{T}}$	(III)	Cv
(D)	$\left(\frac{\partial \mathrm{U}}{\partial \mathrm{T}}\right)_{\mathrm{V}}$	(IV)	V

Choose the correct answer from the options given below :

A

(A)-(I), (B)-(II), (C)-(IV), (D)-(III)

B

(A)-(II), (B)-(III), (C)-(I), (D)-(IV)

C

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

D

(A)-(II), (B)-(I), (C)-(III), (D)-(IV)

2

JEE Main 2025 (Online) 22nd January Morning Shift

MCQ (Single Correct Answer)

+4

-1

A liquid when kept inside a thermally insulated closed vessel at $25^{\circ} \mathrm{C}$ was mechanically stirred from outside. What will be the correct option for the following thermodynamic parameters ?

A

$\Delta \mathrm{U}=0, \mathrm{q}<0, \mathrm{w}>0$

B

$\Delta \mathrm{U}>0, \mathrm{q}=0, \mathrm{w}>0$

C

$\Delta \mathrm{U}=0, \mathrm{q}=0, \mathrm{w}=0$

D

$\Delta \mathrm{U}<0, \mathrm{q}=0, \mathrm{w}>0$

3

JEE Main 2024 (Online) 5th April Morning Shift

MCQ (Single Correct Answer)

+4

-1

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R)

Assertion (A) : Enthalpy of neutralisation of strong monobasic acid with strong monoacidic base is always $$-57 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

Reason (R) : Enthalpy of neutralisation is the amount of heat liberated when one mole of $$\mathrm{H}^{+}$$ ions furnished by acid combine with one mole of $${ }^{-} \mathrm{OH}$$ ions furnished by base to form one mole of water.

In the light of the above statements, choose the correct answer from the options given below.

A

(A) is true but (R) is false

B

Both (A) and (R) are true and (R) is the correct explanation of (A)

C

Both (A) and (R) are true but (R) is not the correct explanation of (A)

D

(A) is false but (R) is true

4

JEE Main 2024 (Online) 1st February Morning Shift

MCQ (Single Correct Answer)

+4

-1

Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following :

A

$\mathrm{q}=0, \Delta \mathrm{T}=0, \mathrm{w}=0$

B

$\mathrm{q}=0, \Delta \mathrm{T} \neq 0, \mathrm{w}=0$

C

$\mathrm{q} \neq 0, \Delta \mathrm{T}=0, \mathrm{w}=0$

D

$\mathrm{q}=0, \Delta \mathrm{T}<0, \mathrm{w} \neq 0$