1
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the work done in the following reaction at $$300 \mathrm{~K}$$ and at constant pressure.

$$\left(\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$$

$$4 \mathrm{HCl}_{(\mathrm{g})}+\mathrm{O}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{Cl}_{2(\mathrm{~g})}+2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}$$

A
$$-7482 \mathrm{~J}$$
B
$$-4988 \mathrm{~J}$$
C
$$2494 \mathrm{~J}$$
D
$$3200 \mathrm{~J}$$
2
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is NOT the feature of reversible process?

A
The driving and opposing forces differ by large amount.
B
The process can be reversed by infinitesimal change in pressure.
C
A reversible process proceeds very slowly.
D
The system attains mechanical equilibrium at the end of every step.
3
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A gas absorbs $$150 \mathrm{~J}$$ heat and expands by $$300 \mathrm{~cm}^3$$ against a constant external pressure $$2 \times 10^5 \mathrm{~N} \mathrm{~m}^{-2}$$, What is $$\Delta \mathrm{U}$$ of the system?

A
210 J
B
90 J
C
450 J
D
$$-$$300 J
4
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Equal masses in grams of $$\mathrm{H}_2, \mathrm{~N}_2, \mathrm{Cl}_2$$, and $$\mathrm{O}_2$$, are enclosed in cylinders separately. If these gases expand isothermally and reversibly by $$10 \mathrm{~dm}^3$$ at $$300 \mathrm{~K}$$, the work done by gas is maximum for

A
$$\mathrm{H}_2$$
B
$$\mathrm{N}_2$$
C
$$\mathrm{Cl}_2$$
D
$$\mathrm{O}_2$$
MHT CET Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12