- 1(current)
Q. No.An ideal gas is made to undergo a cycle depicted by the \((P-V)\) diagram alongside. If the curved line from \(A\) to \(B\) is adiabatic, then:
| 1. | the efficiency of this cycle is given by unity as no heat is released during the cycle. |
| 2. | heat is absorbed in the upper part of the straight-line path and released in the lower. |
| 3. | if \(T_1\) and \(T_2\) are the maximum and minimum temperatures reached during the cycle, then the efficiency is given by, \(1-\frac{T_2}{T_1}.\) |
| 4. | the cycle can only be carried out in the reverse direction as shown in the figure. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe Carnot cycle (reversible) of gas is represented by a pressure-volume curve as shown. Consider the following statements:
| I. | Area \(ABCD\) = Work done on the gas |
| II. | Area \(ABCD\) = Net heat absorbed |
| III. | Change in the internal energy in cycle = \(0\) |
Which of the statement(s) given above is/are correct?
| 1. | I only | 2. | II only |
| 3. | II and III | 4. | I, II, and III |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
| 1. | The change in internal energy in the process \(BC\) is \(-500R.\) |
| 2. | The change in internal energy in the whole cyclic process is \(250R.\) |
| 3. | The change in internal energy in the process \(CA\) is \(700R.\) |
| 4. | The change in internal energy in the process \(AB\) is \(-350R.\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
| 1. | The magnitude of the work done by the gas is \(RT_{0}\ln 2\). |
| 2. | Work done by the gas is \(V_{0}T_{0}.\) |
| 3. | Net work done by the gas is zero. |
| 4. | Work done by the gas is \(2RT_{0}\ln2\). |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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