Home
Class 11
PHYSICS
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 A and B are equally efficient

D

depends on fuels used in A and B

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-I(C.W)|32 Videos

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-II(C.W)|25 Videos

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise SOLVED EXAMPLE|83 Videos

  • GRAVITATION

    NARAYNA|Exercise EXERCISE -IV|40 Videos

  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - IV|35 Videos

Similar Questions

Explore conceptually related problems

Two carnote engines A and B have their sources at 1000 K and 1100 K and their sinks are at 400 K and 500 K respectively. If eta_(A) and eta_(B) are their efficiencies,

Two engines A and B have their sources at 400 K and 350 K and sinks at 350 K and 300 K respectively. Which engine is more efficient and by how much ?

Two carnot engine A and B operate respectively between 500 K and 400 K , and 400 K and 300 K . What is the percentage difference in their efficiencies ?

Two Carnot engines A and B are operated is succession. The first one A receives heat from a source at T_(1)=800K and rejects to a sink at T_(2)K . The second engine B receives hence rejected by the first engine and rejects the another sink at T_(3) =300K. If the efficiencies of two engines are equal, then the value of T_(2) is

A carnot engine has the same efficiency (i) between 100K and 500K and (ii) between TK and 900K . Caculate the temperature T of the sink.

NARAYNA-KINETIC THEORY OF GASES-C.U.Q
  1. The work done on the system in an aidabatic compression depends on

    Text Solution

    |

  2. The ratio of slopes of adiabatic and isothermal curves is

    Text Solution

    |

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

    Text Solution

    |

  4. If the temperature of the sinkis decreased, then the efficiency of hea...

    Text Solution

    |

  5. An ideal heat engine can be 100% efficient if its sink is at

    Text Solution

    |

  6. If the temperature of a source increases, then the efficiency of a hea...

    Text Solution

    |

  7. When heat is added to a system then the following is not possible?

    Text Solution

    |

  8. A sink, that is a system where heat is rejected, is essential for the ...

    Text Solution

    |

  9. The efficiency of a Carnot heat engine

    Text Solution

    |

  10. An ideal heat engine working between temperature T(H) and T(L) has eff...

    Text Solution

    |

  11. The efficiency of the reversible heat engine is eta(r) and that of irr...

    Text Solution

    |

  12. In a heat engine, the temperature of the working substance at the end ...

    Text Solution

    |

  13. The adiabatic and isothermal elasticities B(phi) and B(theta) are rela...

    Text Solution

    |

  14. For the indicator diagram given below, select wrong statement?

    Text Solution

    |

  15. The door of a running refrigerator inside a room is left open. The cor...

    Text Solution

    |

  16. Which of the following will extinguish the fire quickly?

    Text Solution

    |

  17. Which of the following is true in the case of molecules, when ice melt...

    Text Solution

    |

  18. When two blocks of ice are pressed against each other then they stick ...

    Text Solution

    |

  19. A cubical box containing a gas with internal energy U is given velocit...

    Text Solution

    |

  20. A cubical box containing a gas is moving with some velocity. If it is ...

    Text Solution

    |