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Two steam engines 'A' and 'B', have thei...

Two steam engines 'A' and 'B', have their sources respectively at 700K and 650 K and their sinks at 350 K and 300K. Then

A

A is more efficient than B

B

B is more efficient than A

C

both are equally efficient

D

depends on the fuels used in A & B

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The correct Answer is:
B
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MOTION-Thermodynamics-EXERCISE - 1
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  2. A gas of given mass, is brought from stage A to B along three paths 1,...

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  3. The indicator diagrams representing minimum and maximum amounts of wor...

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  4. A fixed mass of gas undergoes the cycle of changes represented by PQRS...

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  5. Consider the process on a system shown in figure. During the process, ...

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  6. An ideal system can be brought from stage A to B through four paths as...

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  7. Ideal gas is taken through process shown in figure

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  8. Four curves A, B, C and D are drawn in Fig. for a given amount of gas....

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  9. In reference of above figure, no heat exchange between the gas and the...

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  10. Two curves are given at temperatures T(1) and T(2) in an isothermal pr...

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  11. Three curves are shown in the P-V diagram. P, Q and R represent the pr...

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  12. The cyclic process for 1 mole of an ideal gas is shown in the V-T diag...

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  13. A certain mass of an ideal gas is at pressure P(1) and volume V(1). If...

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  14. A thermodynamics cycle takes in heat energy at a high temperature and ...

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  15. An ideal gas heat engine operates in Carnot cycle between 227^(@)C and...

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  16. An ideal heat engine exhausting heat at 77^(@) is to have a 30% effici...

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  17. A Carnot engine, whose sink is at 300 K, has an efficiency of 40%. By ...

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  18. Two steam engines 'A' and 'B', have their sources respectively at 700K...

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  19. Two steam engines 'A' and 'B', have their sources respectively at 700K...

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  20. A Carnot engine working between K 300 and 600 K has work output of 800...

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