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

Which of the following equations indicates increase in entropy?

A
$\mathrm{CaO}_{(\mathrm{s})}+\mathrm{CO}_{2(\mathrm{~g})} \longrightarrow \mathrm{CaCO}_{3(\mathrm{~s})}$
B
$\mathrm{NaCl}_{(\mathrm{aq})} \longrightarrow \mathrm{NaCl}_{(\mathrm{s})}$
C
$\mathrm{NaNO}_{3(\mathrm{~s})} \longrightarrow \mathrm{Na}_{(\mathrm{aq})}^{+}+\mathrm{NO}_{3(\mathrm{aq})}^{-}$
D
$\mathrm{N}_{2(\mathrm{~g})}+3 \mathrm{H}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{NH}_{3(\mathrm{~g})}$
2
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following statements is true about internal energy?

A
It increases with increase in temperature.
B
It decreases with increase in temperature.
C
Remain constant on changing temperature.
D
It is not a state function.
3
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
$-21.242 \mathrm{~J}$
4
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
$\mathrm{NH}_3$
MHT CET Subjects
EXAM MAP