- 1(current)
Q. No.Identify correct match using Column I & Column II
| Column I | Column II | ||
| (i) | Spontaneous process | (a) | Isothermal and isobaric process |
| (ii) | \(\Delta H^\circ\) | (b) | \(\Delta H<0 \) |
| (iii) | \(\Delta T=0, \Delta P=0 \) | (c) | \(\Delta G<0 \) |
| (iv) | Exothermic process | (d) | (Bond energy of reactant) - (Bond energy of product) |
| I | II | III | IV | |
| 1. | c | d | a | b |
| 2. | b | a | c | d |
| 3. | d | b | c | d |
| 4. | a | d | b | c |
Subtopic: Â First Law of Thermodynamics |Â Spontaneity & Entropy |Â Gibbs Energy Change |
 94%
Level 1: 80%+
JEE
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3 moles of helium gas at 1 bar is compressed reversibly and isothermally at 400 K to 10 bar pressure. The work done (in J) on the system is: (Given: \(R= 8.314 ~J K^{-1}~ mol^{-1}\) )
| 1. | \(2.29 \times 10^4 \) | 2. | \(2.29 \times 10^{-4} \) |
| 3. | \(-2.29 \times 10^4 \) | 4. | \(-2.29 \times 10^{-4} \) |
Subtopic: Â First Law of Thermodynamics |
 59%
Level 3: 35%-60%
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1 mol of monoatomic ideal gas expanded adiabatically against a constant pressure of 2 atm from 10L to 20L. The correct option for the above process is:
1. q = 20 L-atm
2. \(\Delta U = 0 \)
3. \(\Delta U = -20 ~\text L~\text {atm} \)
4. \(\text w = 10 ~\text L~ \text {atm} \)
1. q = 20 L-atm
2. \(\Delta U = 0 \)
3. \(\Delta U = -20 ~\text L~\text {atm} \)
4. \(\text w = 10 ~\text L~ \text {atm} \)
Subtopic: Â First Law of Thermodynamics |
 82%
Level 1: 80%+
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- 1(current)
Q. No.
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