1
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For reaction, $$\mathrm{CO}_{(\mathrm{g})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})} \longrightarrow \mathrm{CO}_{2(\mathrm{~g})}$$

Which of the following equations is CORRECT at constant $$\mathrm{T}$$ and $$\mathrm{P}$$ ?

A
$$\Delta \mathrm{H}<\Delta \mathrm{U}$$
B
$$\Delta \mathrm{H}>\Delta \mathrm{U}$$
C
$$\Delta \mathrm{H}=\Delta \mathrm{U}$$
D
$$\Delta \mathrm{H}=0$$
2
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate amount of methane formed by liberation of $$149.6 \mathrm{~kJ}$$ of heat using following equation.

$$\mathrm{C}_{(\mathrm{s})}+2 \mathrm{H}_{2(\mathrm{~g})} \longrightarrow \mathrm{CH}_{4(\mathrm{~g})} \quad \Delta \mathrm{H}=-74.8 \mathrm{~kJ} / \mathrm{mol}$$

A
16 g
B
24 g
C
32 g
D
48 g
3
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
$$202.3 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$$
4
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
$$4.988 \mathrm{~kJ}$$
B
$$-1.125 \mathrm{~kJ}$$
C
$$3.234 \mathrm{~kJ}$$
D
$$-4.988 \mathrm{~kJ}$$
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