1
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following reactions exhibits $$\Delta \mathrm{H}=\Delta \mathrm{U}$$ ?

A
$$\mathrm{H}_{2(\mathrm{~g})}+\mathrm{Br}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{HBr}_{(\mathrm{g})}$$
B
$$2 \mathrm{CO}_{(\mathrm{g})}+\mathrm{O}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{CO}_{2(\mathrm{~g})}$$
C
$$\mathrm{PCl}_{5(\mathrm{~g})} \rightarrow \mathrm{PCl}_{3(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{~g})}$$
D
$$\mathrm{C}_{(\mathrm{s})}+2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})} \rightarrow 2 \mathrm{H}_{2(\mathrm{~g})}+\mathrm{CO}_{2(\mathrm{~g})}$$
2
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

An ideal gas expands by performing $$200 \mathrm{~J}$$ of work, during this internal energy increases by $$432 \mathrm{~J}$$. What is enthalpy change?

A
$$200 \mathrm{~J}$$
B
$$232 \mathrm{~J}$$
C
$$432 \mathrm{~J}$$
D
$$632 \mathrm{~J}$$
3
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the value of $$\Delta G$$ for following reaction at $$300 \mathrm{~K}$$.

$$\begin{aligned} & \mathrm{H}_2 \mathrm{O}_{(\mathrm{s})} \longrightarrow \mathrm{H}_2 \mathrm{O}_{(l)} \\ & \left(\Delta \mathrm{H}=7 \mathrm{~kJ}, \Delta \mathrm{S}=24.8 \mathrm{~J} \mathrm{~K}^{-1}\right) \end{aligned}$$

A
$$0.74 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
B
$$-0.82 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
C
$$0.21 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
D
$$-0.44 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
4
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the value of temperature in degree Celsius at absolute zero ?

A
$$273.15^{\circ} \mathrm{C}$$
B
$$-373.15^{\circ} \mathrm{C}$$
C
$$0^{\circ} \mathrm{C}$$
D
$$-273.15^{\circ} \mathrm{C}$$
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