1
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

2 moles of an ideal gas are expanded isothermally and reversibly from 20 L to 40 L at 300 K . Calculate work done. ( $\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$).

A
$-5.713 \mathrm{~J}$
B
$-11.526$ J
C
$-16.939 \mathrm{~J}$
D
$-21.242 \mathrm{~J}$
2
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

10 g each of $\mathrm{NH}_3, \mathrm{~N}_2, \mathrm{Cl}_2$ and $\mathrm{H}_2 \mathrm{~S}$ are expanded isothermally and reversibly at same temperature. Identify gas that performs maximum work.

A
$\mathrm{N}_2$
B
$\mathrm{Cl}_2$
C
$\mathrm{H}_2 \mathrm{S}$
D
$\mathrm{NH}_3$
3
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the factor from following on which heat of reaction does not depend.

A
Physical states of reactants and products.
B
Total number of steps in which reaction occurs.
C
Temperature of the reaction.
D
Whether the reaction is carried out at constant pressure or constant volume.
4
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For the reaction,

$$2 \mathrm{H}_{2(\mathrm{~g})}+\mathrm{O}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}, \Delta \mathrm{H}^{\circ}=-573.2 \mathrm{~kJ}$$

What is heat of decomposition of water per mol?

A
$-28.66 \mathrm{~kJ}$
B
$\mathrm{143.3 ~kJ}$
C
$\mathrm{286.6 ~kJ}$
D
$\mathrm{573.2 ~kJ}$
MHT CET Subjects
EXAM MAP