- 1(current)
Q. No.
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An ideal gas is expanded irreversibly against 10 bar pressure from 20 litres to 30 litres. Calculate 'w' if the process is isoenthalpic.
| 1. | 0 | 2. | +100J |
| 3. | -100 J | 4. | -10 kJ |
Subtopic: First Law of Thermodynamics |
Level 3: 35%-60%
Hints
A gas is allowed to expand in a well-insulated container against a constant external pressure of 2.5atm from an initial volume of 2.50 L to a final volume of 4.50L. The change in internal energy U of the gas in joules will be:
| 1. | –500J | 2. | –505J |
| 3. | –506J | 4. | –508J |
Subtopic: First Law of Thermodynamics |
Level 3: 35%-60%
NEET - 2017
Hints
Maximum work is obtained by a system in:
| 1. | Irreversible process | 2. | Reversible process |
| 3. | Adiabatic process | 4. | Isobaric process |
Subtopic: First Law of Thermodynamics |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Select the correct option based on statements below:
| Statement I: | Total enthalpy change of a multistep process is the sum of ∆H1 + ∆H2 + ∆H3 + . . . |
| Statement II: | When heat is absorbed by the system, the sign of q is taken to be negative. |
| 1. | Statement I is correct; Statement II is correct. |
| 2. | Statement I is correct; Statement II is incorrect. |
| 3. | Statement I is incorrect; Statement II is correct. |
| 4. | Statement I is incorrect; Statement II is incorrect. |
Subtopic: First Law of Thermodynamics |
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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