1
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate $$\Delta \mathrm{S}_{\text {total }}$$ for the following reaction at $$300 \mathrm{~K}$$.

$$\mathrm{NH}_4 \mathrm{NO}_{3(\mathrm{~s})} \longrightarrow \mathrm{NH}_{(\mathrm{aq})}^{+}+\mathrm{NO}_{3(\mathrm{aq})}^{-}$$

$$\left(\Delta \mathrm{H}=28.1 \mathrm{~kJ} \mathrm{~mol}^{-1}, \Delta \mathrm{S}_{\mathrm{sys}}=108.7 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$$

A
$$15.1 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$$
B
$$93.6 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$$
C
$$84.3 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$$
D
$$202.3 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$$
2
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the work done during oxidation of 4 moles of $$\mathrm{SO}_{2(\mathrm{~g})}$$ to $$\mathrm{SO}_{3(\mathrm{~g})}$$ at $$27^{\circ} \mathrm{C}$$?

$$\left(\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1(\mathrm{~g})} \mathrm{mol}^{-1}\right)$$

A
$$1.780 \mathrm{~kJ}$$
B
$$-1.125 \mathrm{~kJ}$$
C
$$3.234 \mathrm{~kJ}$$
D
$$-4.988 \mathrm{~kJ}$$
3
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the value of increase in internal energy when system does $$8 \mathrm{~J}$$ of work on surrounding by supplying $$40 \mathrm{~J}$$ of heat to it?

A
23 J
B
32 J
C
40 J
D
48 J
4
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is TRUE for isobaric process?

A
$$\Delta \mathrm{U}=0$$
B
$$-\Delta \mathrm{U}=-\mathrm{W}$$
C
$$\Delta \mathrm{U}=\mathrm{Q}$$
D
$$\mathrm{Q}_{\mathrm{P}}=\Delta \mathrm{U}+\mathrm{P}_{\mathrm{ext}} \Delta \mathrm{V}$$
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Medical
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Graduate Aptitude Test in Engineering
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Class 12