1
MHT CET 2023 9th May Evening Shift
+1
-0

What is the value of $$\Delta H-\Delta U$$ for the following reaction?

$$2 \mathrm{C}_{(\mathrm{s})}+3 \mathrm{H}_{2(\mathrm{~g})} \rightarrow \mathrm{C}_2 \mathrm{H}_{6(\mathrm{~g})}$$

A
$$4 \mathrm{RT}$$
B
$$-5 \mathrm{RT}$$
C
$$\mathrm{RT}$$
D
$$-2 \mathrm{RT}$$
2
MHT CET 2023 9th May Evening Shift
+1
-0

An ideal gas expands by $$1.5 \mathrm{~L}$$ against a constant external pressure of $$2 \mathrm{~atm}$$ at $$298 \mathrm{~K}$$. Calculate the work done?

A
$$-75 \mathrm{~J}$$
B
$$-303.9 \mathrm{~J}$$
C
$$13.3 \mathrm{~J}$$
D
$$-30 \mathrm{~J}$$
3
MHT CET 2023 9th May Morning Shift
+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
$$632 \mathrm{~J}$$
4
MHT CET 2023 9th May Morning Shift
+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
$$-0.44 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
MHT CET Subjects
Physics
Mechanics
Optics
Electromagnetism
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
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Coordinate Geometry
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