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1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A gas performs 0.320 kJ work on surrounding and absorbs 120 J of heat from the surrounding. Hence, change in internal energy is

A
200 J
B
120.32 J
C
$-$200 J
D
440 J
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Based on first law of thermodynamics which of the following is correct

A
for an isobaric process, $q_p=\Delta U+w$
B
for an adiabatic process, $\Delta U=-w$
C
for an isochoric process, $\Delta U=-q_v$
D
for an isothermal process, $q=+w$
3
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
$\mathrm{N}_2(g)+3 \mathrm{H}_2(g) \longrightarrow 2 \mathrm{NH}_3(g)$
4
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
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