Which among the following state functions is an extensive property of the system?

1.	Temperature	2.	Volume
3.	Refractive index	4.	Viscosity

Which, among the following, is not a state function?

1. Internal energy

2. Free energy

3. Work

4. Enthalpy

Which of the following is correct for isothermal expansion of an ideal gas:

1. W_rev = W_irr

2. W_rev + W_irr = 0

3. W_rev > W_irr

4. q_rev = q_irr

The correct statement for a reversible process in a state of equilibrium is:
1. $∆$G = – 2.30RT log K
2. $∆$G = 2.30RT log K
3. $∆$G^o = – 2.30RT log K
4. $∆$G^o = 2.30RT log K

Give the following bond energies:
H—H bond energy: 431.37 kJ mol^-1 
C=C bond energy: 606.10 kJ mol^-1 
C—C bond energy: 336.49 kJ mol^-1 
C—H bond energy: 410.50 kJ mol^-1 

Enthalpy for the following reaction will be:

The values of ΔH and ΔS for the given reaction are 170 kJ and 170 JK^-1, respectively.
C_(graphite) + CO₂(g)→2CO(g) 
This reaction will be spontaneous at:

1. 710 K
2. 910 K
3. 1110 K
4. 510 K

Which of the following is the enthalpy change for the hydrogenation of ethyne to ethene?

HC≡CH + H₂ → C₂H₄
Given bond energies: 
C≡C = 198 kcal mol⁻¹
C–H = 98 kcal mol⁻¹
H–H = 103 kcal mol⁻¹
C=C = 145 kcal mol⁻¹

1. 48 kcal

2. 96 kcal

3. -40 kcal

4. -152 kcal

For the reaction, $2{\mathrm{N}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2{\mathrm{N}}_2\mathrm{O}\left(\mathrm{g}\right)$, at 298K $∆\mathrm{H}$ is 164 kJ mol^-1. The $∆\mathrm{E}$ of the reaction is :
1. \(166.5 \mathrm{~kJ} \mathrm{~mol}^{-1} \)
2. \(141.5 \mathrm{~kJ} \mathrm{~mol}^{-1} \)
3. \(104.0 \mathrm{~kJ} \mathrm{~mol}^{-1} \)
4. \(-169 \mathrm{~kJ} \mathrm{~mol}^{-1}\)

Which plot represents an exothermic reaction?

1.		2.
3.		4.