1
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the equation in which change in enthalpy is equal to change in internal energy

A
$2 \mathrm{H}_2 \mathrm{O}_2(\mathrm{I}) \longrightarrow 2 \mathrm{H}_2 \mathrm{O}(\mathrm{I})+\mathrm{O}_2(g)$
B
$\mathrm{C}(\mathrm{s})+\mathrm{O}_2(\mathrm{~g}) \longrightarrow \mathrm{CO}_2(\mathrm{~g})$
C
$\mathrm{PCl}_5(\mathrm{~g}) \longrightarrow \mathrm{PCl}_3(\mathrm{~g})+\mathrm{Cl}_2(\mathrm{~g})$
D
$\mathrm{N}_2(g)+3 \mathrm{H}_2(g) \longrightarrow 2 \mathrm{NH}_3(g)$
2
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two moles of an ideal gas is expanded isothermally and reversibly at 300 K from 1 L to 10 L . The enthalpy change in kJ is

A
11.4 kJ
B
4.8 kJ
C
$-$11.4 kJ
D
zero kJ
3
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$\begin{aligned} & \text { If } \mathrm{C}(s)+\mathrm{O}_2(g) \rightarrow \mathrm{CO}_2(g), \Delta H=-X \\ & \mathrm{CO}(g)+\frac{1}{2} \mathrm{O}_2(g) \rightarrow \mathrm{CO}_2(g), \Delta H=-Y \end{aligned}$$ Calculate $\Delta_f H$ for $\mathrm{CO}_{(g)}$ formation

A
$-Y-X$
B
$Y-X$
C
$X+Y$
D
$X-Y$
4
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Three moles of an ideal gas are expanded isothermally from a volume of $300 \mathrm{~cm}^3$ to 2.5 L at 300 K against a pressure of 1.9 atm . The work done in joules is

A
$-$423.56 J
B
+423.56 J
C
$-$4.18 J
D
+4.8 J
MHT CET Subjects
EXAM MAP