Q. No.Which, among the following, is not a state function?
1. Internal energy
2. Free energy
3. Work
4. Enthalpy
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Which of the following is correct for isothermal expansion of an ideal gas -
1. Wrev = Wirr
2. Wrev + Wirr = 0
3. Wrev > Wirr
4. qrev = qirr
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Which among the following state functions is an extensive property of the system?
| 1. | Temperature | 2. | Volume |
| 3. | Refractive index | 4. | Viscosity |
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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. Go = – 2.30RT log K
4. Go = 2.30RT log K
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\(\mathrm{Ag_2 CO_3 (g) \rightarrow 2Ag^+ (aq) + CO^{2-}_3 (aq)}\)
\(\mathrm{K_{sp}}\) of \(\mathrm {Ag_2CO_3 (s) }\) in water at 25º C is (R = 8.314 JK–1 mol–1)
1. \(3.2 \times 10^{26}\)
2. \(8.0 \times 10^{-12}\)
3. \(2.9 \times 10^{-3}\)
4. \(7.9 \times 10^{-2}\)
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Which of the following statements is correct for the spontaneous adsorption of a gas?
| 1. | ∆ S is negative and therefore, ∆ H should be highly positive |
| 2. | ∆ S is negative and therefore, ∆ H should be highly negative |
| 3. | ∆ S is positive and therefore, ∆ H should be negative |
| 4. | -∆ S is positive and therefore, ∆ H should also be highly positive |
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Given the following reaction:
\(4H(g)\)→ \(2 H_{2}\)\((g)\)
The enthalpy change for the reaction is -869.6 kJ. The dissociation energy of the H-H bond is:
1. -869.6 kJ
2. +434.8kJ
3. +217.4kJ
4. -434.8 kJ
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From 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 reaction,
will be:
| 1. | 1523.6 kJ mol-1 | 2. | -243.6 kJ mol-1 |
| 3. | -120.0 kJ mol-1 | 4. | 553.0 kJ mol-1 |
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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
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1. 1.968 V
2. 2.0968 V
3. 1.0968 V
4. 0.0968 V
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