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For which process does DeltaU = 0 holds ...

For which process does `DeltaU = 0` holds true?

A

Cyclic process

B

Isothermal expansion

C

Isochoric process

D

Adibatic process.

Text Solution

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The correct Answer is:
A, B
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Assertion : In a cyclic process DeltaU = 0 . Reason : Cyclic process represents equilibrium state.

Knowledge Check

  • For which reaction DeltaH=DeltaU ?

    A
    `PCl_(5(g))rarr PCl_(3(g))+Cl_(2(g))`
    B
    `2CO_((g))+O_(2(g))rarr 2CO_(2(g))`
    C
    `H_(2(g))+Br_(2(g))rarr 2HBr_((g))`
    D
    `C_((s))+2H_(2)O_((g)) rarr 2H_(2(g))+CO_(2(g))`

  • If a gas is allowed to expand at constant temperature then which of the following does not hold true?

    A
    the kinetic energy of the gas molecules decreases
    B
    the kinetic energy of the gas molecules increases
    C
    the kinetic energy of the gas molecules increases
    D
    Cannot be predicted unless volumes of the gases are given

  • If A=[{:(1,0,-2),(2,-3,4):}] , then the matrix X for which 2X + 3A = 0 holds true is

    A
    `[{:(-(3)/(2),0,-3),(-3,-(9)/(2),-6):}]`
    B
    `[{:((3)/(2),0,-3),(3,-(9)/(2),-6):}]`
    C
    `[{:((3)/(2),0,3),(3,(9)/(2),6):}]`
    D
    `[{:(-(3)/(2),0,3),(-3,(9)/(2),-6):}]`

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