Home
Class 12
PHYSICS
If DeltaU and Delta W represent the incr...

If `DeltaU` and `Delta W` represent the increase in internal energy and work done by the system resectively in a thermodynamical process, which of the following is true?

A

`Delta U = –Delta W`, in a isothermal process

B

`Delta U = –Delta W`, in a adiabatic process

C

`Delta U = DeltaW`, in a isothermal process

D

`Delta U = Delta W`, in a adiabatic process

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • Thermodynamics

    MOTION|Exercise EXERCISE - 3 SECTION|1 Videos

  • Thermodynamics

    MOTION|Exercise EXERCISE - 3 SECTION b|26 Videos

  • Thermodynamics

    MOTION|Exercise EXERCISE - 2|40 Videos

  • SURFACE TENSION & VISCOSITY

    MOTION|Exercise Exercise - 4 | Level-II Previous Year | JEE Advanced|12 Videos

  • UNIT & DIMENSIONS

    MOTION|Exercise Exercise - 4 (Level - II) (PREVIOUS YEAR JEE ADVANCED)|10 Videos

Similar Questions

Explore conceptually related problems

We consider a thermodynamic system. If DeltaU represents the increase in its internal energy and W the work done by the system, which of the following statements is true?

What will happen to internal energy if work is done by the system?

If DeltaQ and represent the heat supplied to the system and the work done on the system respectively, then the first law of thermodynamics can be written as

The first law thermodynamics was gives as q=Delta U+(-w) , where q is heat given to a system and Delta U represent increase in internal energy and -w is work done by the system. Various process such as isothermal, adiabatic, cyclic, isobaric and isochoric process in terms to first law of thermodynamics leads for important results. The molar heat capacity for 1 mole of monoatomic gas is 3/2R at constant volume and 5/2R at constant pressure. Which of the following statements are correct:

The first law thermodynamics was gives as q=Delta U+(-w) , where q is heat given to a system and Delta U represent increase in internal energy and -w is work done by the system. Various process such as isothermal, adiabatic, cyclic, isobaric and isochoric process in terms to first law of thermodynamics leads for important results. The molar heat capacity for 1 mole of monoatomic gas is 3/2R at constant volume and 5/2R at constant pressure. A system is allowed to move from state A to B following path ACB by absorbing 80 J of heat energy. The work done by the system is 30 J. The work done by the system in reaching state B from A is 10 J through path ADB which statements are correct : 1. Increase in internal energy from state A to state B is 50 J. 2. If path ADB is followed to reach state B. Delta U = 50J 3. If work done by the system in path AB is 20 J, the heat absorbed during path AB = 70 J. 4. The value U_(C)-U_(A) is equal to U_(D)-U_(B) . 5. Heat absorbed by the system to reach B from A through path ADB is 60 J.

State true or false, internal energy of a gaseous system depends upon thermodynamic process.

The first law of thermodynamics was given as q=DeltaU+(-w) , where q is heat given to a system and DeltaU represents increase in internal energy and -w is work done by the system. Various processes such as isothermal, adiabatic, cyclic, isobaric and isochoric process in terms of I law of thermodynamics leads for important results. The molar heat capacity for 1 mole of monoatomic gas is 3/2 R at constant volume and 5/2 R at constant pressure. Which of the following statements are correct? (1) Both work and heat appears at the boundaries of system. (2) Heat given to a system is given +ve sign. (3) Heat given to a system is equal to increase in internal energy under isothermal conditions (4) Heat given to a system is used to increase internal energy under isochoric conditions (5) Both work and heat are not state functions but their sum (q+w) is state function.

MOTION-Thermodynamics-EXERCISE - 3 SECTION - A
  1. In thermodynamic processes which of the following statement is not tru...

    Text Solution

    |

  2. The internal energy change in a system that has absorbed 2 kcal of hea...

    Text Solution

    |

  3. If DeltaU and Delta W represent the increase in internal energy and wo...

    Text Solution

    |

  4. A monoatomic gas at pressure P(1) and volume V(1) is compressed adiaba...

    Text Solution

    |

  5. Two rigid boxes containing different ideal gases are placed on a table...

    Text Solution

    |

  6. Assertion: The isothermal curves intersect each other at a certain poi...

    Text Solution

    |

  7. A perfect gas goes from a state A to another state B by absorbing 8 × ...

    Text Solution

    |

  8. During an isothermal expansion, a confined ideal gas does -150 J of wo...

    Text Solution

    |

  9. A mass of diatomic gas(gamma=1.4) at a pressure of 2 atomphere is comp...

    Text Solution

    |

  10. A thermodynamic system is taken through the cycle ABCD as shown in the...

    Text Solution

    |

  11. An ideal gas goes from State A to state B via three different process ...

    Text Solution

    |

  12. One mole of an ideal gas goes from an initial state A to final state B...

    Text Solution

    |

  13. Conversion of water to steam is accompanied by which process?

    Text Solution

    |

  14. Calculate the work done for B to A, :-

    Text Solution

    |

  15. What is the slope for an isothermal process in PV indicator diagram -

    Text Solution

    |

  16. When 1 kg of ice at 0^(@)C melts to water at 0^(@)C, the resulting cha...

    Text Solution

    |

  17. A gas is taken through the cycle A to B to C to A, as shown. What is t...

    Text Solution

    |

  18. One mole of oxygen of volume 1 litre at 4 atm pressure to attain 1 atm...

    Text Solution

    |

  19. Which of the following is a state function ?

    Text Solution

    |

  20. A refrigerator transfer 180 joule of energy in one second from tempera...

    Text Solution

    |