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The mathematical expression of first la...

The mathematical expression of first law of thermodynamic is

A

`Delta E = q -W `

B

`q = Delta E -W `

C

`W =q + Delta E `

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
The first law of thermodynamics can be expressed as
`Delta E = q +W `
`q = Delta E - W `
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Knowledge Check

  • First law of Thermodynamics is

    A
    the extension of law conversation of energy
    B
    ` Delta U = q+w`
    C
    the algebraic sum of energy or mass changes in any isolated system is unchanged
    D
    gives idea of entropy

  • Which of the following is the mathematical statement of the first law of thermodynamics?

    A
    `Delta U = q - w`
    B
    `Delta U = w - q`
    C
    `Delta U = q + w`
    D
    `Delta U = - (q + w)`

  • The mathematical form of the first law of thermodynamics when heat (q) is supplied and W is work done by the system is

    A
    `q=DeltaU-W`
    B
    `DeltaU=q-W`
    C
    `DeltaU=-q+W`
    D
    `DeltaU=-q-W`

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    First Law Of Thermodynamics

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