Which p-V curve among the following depicts the highest amount of work done?
 
1. 2.
3. 4.
Subtopic:  2nd & 3rd Law of Thermodynamics |
 84%
From NCERT
NEET - 2022
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Under the isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is:
[Given that 1 L bar = 100 J]

1. 30 J

2. -30 J

3. 5 kJ

4. 25 J

Subtopic:  2nd & 3rd Law of Thermodynamics |
 78%
From NCERT
NEET - 2019
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Reversible expansion of an ideal gas under isothermal and adiabatic conditions are as shown in the figure:

 

ABIsothermal expansion

ACAdiabatic expansion

Which of the following options is not correct?

1. Sisothermal>Sadiabatic

2. TA=TB

3. Wisothermal>Wadiabatic

4. TC>TA

Subtopic:  2nd & 3rd Law of Thermodynamics |
 53%
From NCERT
NEET - 2019
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Identify which of the following is the correct option for free expansion of an ideal gas under adiabatic condition.

1.  q0, T=0, W=0
2.  q=0, T=0, W=0
3.  q=0, T<0, W0
4.  q=0, T0, W=0

Subtopic:  2nd & 3rd Law of Thermodynamics | First Law of Thermodynamics |
 75%
From NCERT
AIPMT - 2011
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Identify the correct statement regarding entropy:

1. At absolute zero of temperature, the entropy of all crystalline substances is taken to be zero
2. At absolute zero of temperature, the entropy of a perfectly crystalline substance is +ve
3. At absolute zero of temperature, the entropy of a perfectly crystalline substance is taken to be zero
4. At 0 °C , the entropy of a perfectly crystalline substance is taken to be zero
Subtopic:  2nd & 3rd Law of Thermodynamics |
 64%
From NCERT
AIPMT - 1998
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