1
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0

A Gas taken in a closed vessel is heated from $$54^{\circ} \mathrm{C}$$ to $$1254^{\circ} \mathrm{C}$$. The pressure of the gas becomes ___________ times its original pressure $$\mathrm{P_1}$$

A
8.92 times $$\mathrm{P_1}$$
B
23.2 times $$\mathrm{P_1}$$
C
4.67 times $$\mathrm{P_1}$$
D
9.6 times $$\mathrm{P_1}$$
2
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

Which of the following are not path functions?

I. H $$-$$ TS

II. W

III. q

IV. q + W

A
I and III
B
I, II, IV
C
II, III and IV
D
I and IV
3
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

The relation between work done in reversible and irreversible process is

A
$${W_{irr}} > {W_{rev}}$$
B
$${W_{irr}} < {W_{rev}}$$
C
$${W_{irr}} = {W_{rev}}$$
D
$${W_{irr}} \ne {W_{rev}}$$
4
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

In which of the following changes, entropy decreases?

A
Rusting of iron
B
Melting of ice
C
Vaporisation of camphor
D
Crystallisation of sucrose from solution
COMEDK Subjects
EXAM MAP