Home
Class 12
PHYSICS
In a carnot engine, when heat is absorbe...

In a carnot engine, when heat is absorbed from the source, its temperature

A

increases

B

Decreases

C

Remains constant

D

Cannot say

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -B) (Objective Type Questions)|30 Videos

  • THERMODYNAMICS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -C) (Previous Year Questions)|63 Videos

  • THERMODYNAMICS

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|20 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-J) Akash Challengers Questions|7 Videos

  • UNITS AND MEASUREMENTS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - D)|15 Videos

Similar Questions

Explore conceptually related problems

Carnot engine is

A carnot engine having an efficiency of (1)/(5) is being used as a refrigerator. If the work done on the refrigerator is 8 J, the amount of heat absorbed from the reservoir at lower temperature is:

A carnot engine having an efficiency of 1/4 is being used as a refrigerator. If the work done on the refrigerator is 5 J, the amount of heat absorbed from the reservoir at lower temperature is:

A carnot engine having an efficiency of 1/4 is being used as a refrigerator. If the work done on the refrigerator is 5 J, the amount of heat absorbed from the reservoir at lower temperature is:

A carnot engine having an efficiency of (1)/(5) is being used as a refrigerator. If the work done on the refrigerator is 8 J, the amount of heat absorbed from the reservoir at lower temperature is:

The efficiency of a heat engine is defined as the ratio of the mechanical work done by the engine in one cycle to the heat absorbed from the high temperature source . eta = (W)/(Q_(1)) = (Q_(1) - Q_(2))/(Q_(1)) Cornot devised an ideal engine which is based on a reversible cycle of four operations in succession: isothermal expansion , adiabatic expansion. isothermal compression and adiabatic compression. For carnot cycle (Q_(1))/(T_(1)) = (Q_(2))/(T_(2)) . Thus eta = (Q_(1) - Q_(2))/(Q_(1)) = (T_(1) - T_(2))/(T_(1)) According to carnot theorem "No irreversible engine can have efficiency greater than carnot reversible engine working between same hot and cold reservoirs". Efficiency of a carnot's cycle change from (1)/(6) to (1)/(3) when source temperature is raised by 100K . The temperature of the sink is-

Three Carnot engines operate in series between a heat source at a temperature T_(1) and a heat sink at temperature T_(4) (see figure). There are two other reservoirs at temperature T_(2) and T_(3) , as shown, with T_(1)gtT_(2)gtT_(3)gtT_(4) . The three engines are equally efficient if :

A Carnot engine, having an efficiency of eta= 1/10 as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is

A Carnot engine, having an efficiency of eta=1//10 as heat engine, is used as a refrigerator. If the work done on the system is 10J, the amount of energy absorbed from the reservoir at lower temperature is

A Carnot engine, having an efficiency of eta= 1/10 as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is

AAKASH INSTITUTE ENGLISH-THERMODYNAMICS-ASSIGNMENT (SECTION -A) (Objective Type Questions)
  1. During the thermodynamic process shown in figure for an ideal gas

    Text Solution

    |

  2. For P-V diagram of a thermodynamic cycle as shown in figure,process BC...

    Text Solution

    |

  3. Work done for the process shownin the figure is

    Text Solution

    |

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

    Text Solution

    |

  5. The specific heat of a gas in a polytropic process is given by-

    Text Solution

    |

  6. For a certain process, pressure of diatomic gas varies according to th...

    Text Solution

    |

  7. In a thermodynamic process two moles of a monatomic ideal gas obeys PV...

    Text Solution

    |

  8. entropy of a system decreases

    Text Solution

    |

  9. During an adiabatic process, the pressure of gas is found to be propor...

    Text Solution

    |

  10. If the efficiency of a carnot engine is eta,then the coefficient of pe...

    Text Solution

    |

  11. In a carnot engine, when heat is absorbed from the source, its tempera...

    Text Solution

    |

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

    Text Solution

    |

  13. An ideal gas heat engine operates in a Carnot's cycle between 227^(@)C...

    Text Solution

    |

  14. The maxium possible efficiency of a heat engine is

    Text Solution

    |

  15. A frictionless heat engine can be 100% efficient only if its exhaust t...

    Text Solution

    |

  16. The effiency of reversible engine isthe irreversible engine.

    Text Solution

    |

  17. Which of the following can be coefficient of perfomace refrigerator?

    Text Solution

    |

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

    Text Solution

    |

  19. By opening the door of a refrigerator placed inside a room you

    Text Solution

    |

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

    Text Solution

    |