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1
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
2
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
$${W_{irr}} \ne {W_{rev}}$$
3
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
4
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

The difference between heat capacity at constant pressure and heat capacity at constant volume is

A
$$R$$
B
$$\frac{R}{T}$$
C
$$\frac{R}{V}$$
D
$$1$$
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