Home
Class 11
PHYSICS
A system can go from state A to state B ...

A system can go from state A to state B in two different processes 1 and 2. If the change in internal energy in two cases are `Delta U_(1) and Delta U_(2)`, respectively, then

A

`Delta U_(1) lt Delta U_(2)`

B

`Delta U_(1) gt Delta U_(2)`

C

`Delta U_(1) = Delta U_(2)`

D

the relation between `Delta U_(1) and Delta U_(1)` in uncertain

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • FIRST AND SECOND LAW OF THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise Exercise - Very Short Answer Type Questions (Mark 1)|53 Videos

  • FIRST AND SECOND LAW OF THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise Exercise - Short Answer Type Questions-I (Marks 2)|5 Videos

  • FIRST AND SECOND LAW OF THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise Higher Order Thinking Skill (HOTS) Questions|35 Videos

  • EXPANSION OF SOLIDS AND LIQUIDS

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|2 Videos

  • FRICTION

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|7 Videos

Similar Questions

Explore conceptually related problems

The initial state of 1 mol of an ideal gas is (P_(1),V_(1),T_(1)) . The gas is expanded by a reversible isothermal process and also by a reversible adiabatic process separately. If final volume of the gas is same in both the processes, and changes in internal energy in the isothermal and adiabatic processes are DeltaU_(1) and DeltaU_(2) respectively, then-

In a reversible process, if changes in entropy of the system and its surroundings are DeltaS_(1) & DeltaS_(2) respectively, then-

Speed of light through two media of refractive indices mu_(1) and mu_(2) are u_(1) and u_(2) respectively, then

In the process AtoBtoC , the change in internal energy of the system in the steps AtoB and B to C are -x jK*mol^(-1) and ykJ*mol^(-1) , respectively. What will be the change in internal energy of the system in the step C toA ?

A system undergoes the process: A to B to C to D . In this process, the change in a state function (X) of the system is x. in the steps A to B and B to C of the process, if the changes in X are y and z respectively, then the change in X in step D to C is-

The initial state of a system is A. this system participates in the following process: A to B to CtoA . What will be the change in internal energy of the system is this process?

A system is changed from a initial state toa final state by a manner such that Delta H = q . If the change from the initial state to the final state were made by a different.path,' would DeltaH be the same as that for the first path? Would q? Give reason.

If the process AtoB occurs reversible, then the change in entropy of the system be, DeltaS_(1) . When the same process occurs irreversible, the change in entropy of the system be DeltaS_(2) . Will the value of DeltaS_(1) be greater than, less than or equal to the value of DeltaS_(2) ?

Two trains, moving at velocities u_(1) and u_(2) travel along the same line towards each other. Drivers of both the trains when the trains are at a distance x apart simultaneously apply brakes producing retardations a_(1) and a_(2) , respectively. Prove that a collision can be avoided only if u_(1)^(2)a_(2)+u_(2)^(2)a_(1)=2a_(1)a_(2)x.

CHHAYA PUBLICATION-FIRST AND SECOND LAW OF THERMODYNAMICS-Exercise - Multiple Choice Questions (Mark 1)
  1. The work done by an ideal gas at constant pressure is 10 J. The amount...

    Text Solution

    |

  2. If the internal energy U and the work W are expressed in unit of J and...

    Text Solution

    |

  3. C(v) = 5/2 R, for 1 mol of any diatomic ideal gas. The value of the ra...

    Text Solution

    |

  4. If R = 2 cal cdot mol^(-1) cdot^(@)C^(-1) and hydrogen is assumed to b...

    Text Solution

    |

  5. Work done becomes zero

    Text Solution

    |

  6. The change in internal energy of an ideal gas becomes zero

    Text Solution

    |

  7. The process in which changes in pressure, volume and temperature occur...

    Text Solution

    |

  8. It is observed by comparing the specific heat of all solid, liquid and...

    Text Solution

    |

  9. In an adiabatic expansion, the change in internal energy of 10 mol of ...

    Text Solution

    |

  10. Which of the following relations does an ideal gas follow in an adiaba...

    Text Solution

    |

  11. The slope of an isothermal curve is always

    Text Solution

    |

  12. Heat cannot transmit from a body at lower temperature to a body at hig...

    Text Solution

    |

  13. A system can go from state A to state B in two different processes 1 a...

    Text Solution

    |

  14. In a given process of an ideal gas, dW = 0 and dQ < 0. Then for the g...

    Text Solution

    |

  15. 5.6 L of helium gas at STP is adiabatically compressed to 0.7 L. Takin...

    Text Solution

    |

  16. A Carnot engine, having an efficiency of eta = 1/10 as heat engine is ...

    Text Solution

    |

  17. The efficiency of a Carnot heat engine working between temperatures 12...

    Text Solution

    |

  18. The efficiency of an ideal heat engine is

    Text Solution

    |

  19. Coefficient of performance of a machine is

    Text Solution

    |

  20. Even Carnot engine cannot give 100 % efficiency, because we cannot

    Text Solution

    |