Home
Class 12
PHYSICS
Objects A and B that are initially separ...

Objects `A` and `B` that are initially separated from each other and well isolated from their surroundings are then brought into thermal contact. Initially `T_(A) = 0^(@)C` and `T_(B) = 100^(@)C` . The specific heat of `A` is less than the specific heat of `B`. After some time, the system comes to an equilibrium state. the final temperatures are:

A

`T_(A) = T_(B) gt 50^(@)C`

B

`T_(A)gt T_(B)gt 50^(@)C`

C

`T_(A) = T_(B) lt 50^(@)C`

D

`T_(B)gtT_(A) gt 50^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
A

At equilibrium `T_(A) = T_(B)`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE -02|82 Videos
  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE -03|11 Videos
  • GEOMETRICAL OPTICS

    ALLEN|Exercise SOME WORKED OUT EXAMPLES|84 Videos
  • CURRENT ELECTRICITY

    ALLEN|Exercise All Questions|427 Videos
  • GRAVITATION

    ALLEN|Exercise EXERCISE 4|9 Videos

Similar Questions

Explore conceptually related problems

A Carnot cycle based ideal heat engine operates between two tanks each having same mass m of water. The source tank has an initial temperature of T_(1) = 361 K and the sink tank has an initial temperature of T_(2) = 289 K . Assume that the two tanks are isolated from the surrounding and exchange heat with the engine only. Specific heat of water is s. (a) Find the final common temperature of the two tanks. (b) Find the total work that the engine will be able to deliver by the time the two tanks reach common temperature.

Which of the substances A, B or C has the highest specific heat ? The temperature vs time graph is shown

(a) Two 40g ice cubes are droped into 200g of water in a thermally insulated container. If the water is initially at 25^(@)C , and the ice comes directly from a freezer at - 15^(@)C , what is the final temperature at thermal equilibrium? (b) What is the final temperature if only one ice cube is used ?

Two identical systems, with heat capacity at a constant volume that varies as C_(v) = bT^(3) (where b is a constant) are thermally isolated. Initially, one system is at a temperature 100 K and the other is at 200K. The systems are then brought to thermal contact and the combined system is allowed reach thermal equilibrium. If T_(0)^(4)=nxx10^(8) then what will be the value of n, where T_(0) is the final temperature in kelvin?

ALLEN-GEOMETRICAL OPTICS-EXERCISE -01
  1. Hailstone at 0^@C from a height of 1 km on an insulating surface conve...

    Text Solution

    |

  2. In figure , heat is added to a pure substance in a closed container ra...

    Text Solution

    |

  3. Objects A and B that are initially separated from each other and well ...

    Text Solution

    |

  4. If H(C) , H(K) andH(F) are heat required to raise the temperature of ...

    Text Solution

    |

  5. Steam at 100^(@)C is passed into 1.1 kg of water contained in a calori...

    Text Solution

    |

  6. Water is used in car radiators as coolant because

    Text Solution

    |

  7. If mass-energy equivalence is taken into account , when water is coole...

    Text Solution

    |

  8. If the intermolecules forces vanish away, the volume occupied by the m...

    Text Solution

    |

  9. A refrigerator converts 100 g of water at 25^(@)C into ice at -10^(@)C...

    Text Solution

    |

  10. Pressure versus temperature graphs of an ideal gas are as shown in fig...

    Text Solution

    |

  11. In a process the density of a gas remains constant. If the temperature...

    Text Solution

    |

  12. The expansion of unit mass of a perfect gas at constant pressure is sh...

    Text Solution

    |

  13. Air is filled at 60^(@)C in a vessel of open mouth. The vessle is heat...

    Text Solution

    |

  14. One mole of an ideal gas undergoes a process p=(p(0))/(1+((V(0))/(V))...

    Text Solution

    |

  15. Two identical glass bulbs are interconnected by a thin glass tube. A g...

    Text Solution

    |

  16. As shown , a piston chamber pf cross section area A is filled with ide...

    Text Solution

    |

  17. A gas has volume V and pressure p. The total translational kinetic ene...

    Text Solution

    |

  18. A mixture of n(1) moles of monoatomic gas and n(2) moles of diatomic g...

    Text Solution

    |

  19. Four containers are filled with monoatomic ideal gases. For each conta...

    Text Solution

    |

  20. 10^(23) molecules of a gas strike a target of area 1 m^(2) at angle 45...

    Text Solution

    |