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

For an ideal gas, the heat of reaction at constant pressure and heat of reaction at constant volume are related by equation _________

A
$\mathrm{H}+\mathrm{U}=\mathrm{PV}$
B
$\mathrm{U}=\mathrm{H}+\mathrm{P} \Delta \mathrm{V}$
C
$\Delta \mathrm{U}=\Delta \mathrm{H}+\frac{\Delta \mathrm{n}}{\mathrm{RT}}$
D
$\Delta \mathrm{H}=\Delta \mathrm{U}+\Delta \mathrm{nRT}$
2
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For the reaction $\mathrm{CH}_{4(\mathrm{~g})}+\mathrm{H}_{2(\mathrm{~g})} \longrightarrow \mathrm{C}_2 \mathrm{H}_{6(\mathrm{~g})}$ $\mathrm{K}_{\mathrm{p}}=3.356 \times 10^{17}$, calculate $\Delta \mathrm{G}^{\circ}$ for the reaction at 298 K .

A
$-$90 kJ
B
$-$100 kJ
C
235.6 kJ
D
33.56 kJ
3
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A gas expands isothermally against a constant external pressure of 1 bar from 10 dm$^3$ to 20 dm$^3$ by absorbing 800 J of heat from surrounding. Calculate value of $\Delta$U.

A
100 J
B
$-$200 J
C
200 J
D
$-$300 J
4
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
$\mathrm{N}_{2(\mathrm{~g})}+3 \mathrm{H}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{NH}_{3(\mathrm{~g})}$
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