Home
Class 11
PHYSICS
If Delta U and Delta W represent the inc...

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

A

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

B

`Delta U = Delta W`, in isothermal process

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    MTG GUIDE|Exercise NEET (ITALS)|25 Videos

  • PROPERTIES OF BULK MATTER

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|40 Videos

  • WORK, ENERGY AND POWER

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|34 Videos

Similar Questions

Explore conceptually related problems

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?

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

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?

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.

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.

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. A system is allowed to move from state A to B following path ACB by absorbing 80J of heat energy. The work done by the system is 30J . The work done by the system in reaching state B from A is 10J through path ADB, Which statements are correct? (1) Increase in internal energy from state A to state B is 50J . (2) If path ADB is followed to reach state B, DeltaU=50J . (3) If work done by the system in path AB is 20J, the heat absorbed during path AB=70J . (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 60J .

MTG GUIDE-THERMODYNAMICS-AIPMT/NEET (MCQs)
  1. If Delta U and Delta W represent the increase in internal energy and w...

    Text Solution

    |

  2. A monatomic gas at pressure P(1) and volume V(1) is compressed adiabat...

    Text Solution

    |

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

    Text Solution

    |

  4. A mass of diatomic gas (gamma = 1.4) at a pressure of 2 atmosphere is ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. An ideal gas goes from state A to state B via three different processe...

    Text Solution

    |

  8. In the given (V-T) diagram, what is the relation between pressures P(1...

    Text Solution

    |

  9. A gas is taken through the cycle A rarr B rarr C rarr A, as shown. Wha...

    Text Solution

    |

  10. During an adiabatic process, the pressure of a gas is found to be prop...

    Text Solution

    |

  11. A monoatomic gas at a pressure P, having a volume V expands isothermal...

    Text Solution

    |

  12. A thermodynamic system undergoes cyclic process ABCDA as shown in figu...

    Text Solution

    |

  13. One mole of an ideal diatomic gas undergoes a transition from A to B a...

    Text Solution

    |

  14. Figure below shows two paths that may be taken by a gas to go from sta...

    Text Solution

    |

  15. An ideal gas is compressed to haf f its initial volume by means of sev...

    Text Solution

    |

  16. The coefficient of performace of a refrigerator is 5. If the temperatu...

    Text Solution

    |

  17. A gas is compressed isothermally to half its initial volume. The same ...

    Text Solution

    |

  18. A refrigerator works between 4^(@)C and 30^(@)C. It is required to rem...

    Text Solution

    |

  19. One mole of an ideal monatomic gas undergoes a process described by th...

    Text Solution

    |

  20. The temperature inside a refrigerator is t(2)^(@)C and the room temper...

    Text Solution

    |