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Q. No.For the given cycle, the work done during the isobaric process is:
1. \(200\) J
2. zero
3. \(400\) J
4. \(600\) J
Subtopic: Work Done by a Gas |
55%
From NCERT
NEET - 2023
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An ideal gas follows a process described by the equation \(PV^2=C\) from the initial \((P_1, V_1, T_1)\) to final \((P_2, V_2, T_2)\) thermodynamics states, where \(C\) is a constant. Then:
| 1. | \(\text{If}~P_1>P_2~\text{then}~T_1<T_2\) |
| 2. | \(\text{If}~V_2>V_1~\text{then}~T_2>T_1\) |
| 3. | \(\text{If}~V_2>V_1~\text{then}~T_2<T_1\) |
| 4. | \(\text{If}~P_1>P_2~\text{then}~V_1>V_2\) |
Subtopic: Types of Processes |
From NCERT
NEET - 2022
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A gas undergoes an isothermal process. The specific heat capacity of the gas in the process is:
| 1. | infinity | 2. | \(0.5\) |
| 3. | zero | 4. | \(1\) |
Subtopic: Molar Specific Heat |
72%
From NCERT
NEET - 2022
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An ideal gas undergoes four different processes from the same initial state as shown in the figure below. Those processes are adiabatic, isothermal, isobaric, and isochoric. The curve which represents the adiabatic process among \(1,\) \(2,\) \(3\) and \(4\) is:
| 1. | \(4\) | 2. | \(1\) |
| 3. | \(2\) | 4. | \(3\) |
Subtopic: Types of Processes |
77%
From NCERT
NEET - 2022
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A thermodynamic system is taken through the cycle \(abcda.\) The work done by the gas along the path \(bc\) is:
1. \(30~\text J\)
2. \(-90~\text J\)
3. \(-60~\text J\)
4. zero
1. \(30~\text J\)
2. \(-90~\text J\)
3. \(-60~\text J\)
4. zero
Subtopic: Work Done by a Gas |
69%
From NCERT
NEET - 2024
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For an adiabatic process, the factor which remains constant is: (all the notations have their usual meaning)
1. \(P^{\gamma-1} {~T}^\gamma \)
2. \(T V^{1-\gamma} \)
3. \(V^{\gamma-1} {~T}^ \gamma \)
4. \(P^{1-\gamma} ~{T}^\gamma\)
1. \(P^{\gamma-1} {~T}^\gamma \)
2. \(T V^{1-\gamma} \)
3. \(V^{\gamma-1} {~T}^ \gamma \)
4. \(P^{1-\gamma} ~{T}^\gamma\)
Subtopic: Cyclic Process |
73%
From NCERT
NEET - 2024
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One mole of an ideal gas at an initial temperature of \(T\) K does \(6R\) joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is \(5/3\), the final temperature of the gas will be:
1. \((T-2.4)\) K
2. \((T+4)\) K
3. \((T-4)\) K
4. \((T+2.4)\) K
Subtopic: First Law of Thermodynamics |
56%
From NCERT
AIPMT - 2004
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The initial pressure and volume of a gas are P and V respectively. First, its volume is expanded to 4V by an isothermal process and then compressed adiabatically to volume V. The final pressure will be (γ = 1.5):
| 1. | 8P | 2. | 4P |
| 3. | P | 4. | 2P |
Subtopic: Types of Processes |
72%
From NCERT
AIPMT - 1999
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We consider a thermodynamic system. If \(\Delta U\) represents the increase in its internal energy and \(W\) the work done by the system, which of the following statements is true?
| 1. | \(\Delta {U}=-{W}\) in an isothermal process. |
| 2. | \(\Delta {U}={W}\) in an isothermal process. |
| 3. | \(\Delta {U}=-{W}\) in an adiabatic process. |
| 4. | \(\Delta {U}={W}\) in an adiabatic process. |
Subtopic: First Law of Thermodynamics |
84%
From NCERT
AIPMT - 1998
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If a gas changes volume from \(2\) litres to \(10\) litres at a constant temperature of \(300~\text{K}\), then the change in its internal energy will be:
| 1. | \(12~\text{J}\) | 2. | \(24~\text{J}\) |
| 3. | \(36~\text{J}\) | 4. | \(0~\text{J}\) |
Subtopic: Molar Specific Heat |
87%
From NCERT
AIPMT - 1998
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