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A scientist says that the efficiency of ...

A scientist says that the efficiency of his heat engine which operates at source temperature `127^(@)C` and sink temperature `27^(@)C is 26%`, then

A

It is impossible

B

It is possible but less probable

C

It is quite probable

D

Data are incomplete

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The correct Answer is:
A
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MOTION-Thermodynamics-EXERCISE - 2
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  2. A thermodynamic process is shown in this figure. The pressure and volu...

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  3. An ideal gas is taken through the cycle AtoBtoCtoA, as shown in the fi...

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  4. In the figure represent cyclic process. The corresponding PV graph is

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  5. The figure shows the P-V plot of an ideal gas taken through a cycle AB...

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  6. Following figure shows P-T graph for four processes A, B, C and D. Sel...

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  7. During the thermodynamic process shown in figure for an ideal gas

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  8. During which of the following thermodynamic process represented by PV ...

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  9. The variation of pressure P with volume V for an ideal monatomic gas d...

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  10. Figure shows, the adiabatic curve on a log T and log V scale performed...

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  11. If a gas is taken A to C through B then heat absorbed by the gas is 8 ...

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  12. An ideal gas is taken from the state A (pressure P, volume V) to the s...

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  13. One mole of a monatomic ideal gas is taken through a cycle ABCDA as s...

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  14. One mole of mono-atomic ideal gas is taken along two cyclic processes ...

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  15. A fixed thermally conducting cylinder has radius R and length L0. The ...

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  16. The efficiency of a Carnot engine operating between temperatures of 10...

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  17. If the temperature of the sink of a Carnot engine having an efficiency...

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  18. A scientist says that the efficiency of his heat engine which operates...

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  19. The temperature inside and outside a refrigerator are 273 K and 300 K ...

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  20. A Carnot engine whose sinl is at 300K has an efficiency of 40%. By how...

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