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Which of the following is incorrect rega...

Which of the following is incorrect regarding the first law of thermodynamics?

A

It is not applicable to any cycle process

B

It is a restatement of the principle of conservation of energy

C

It introduces the concept of the internal energy

D

It introduces the concept of the entropy

Text Solution

Verified by Experts

The correct Answer is:
A, D
Statement (a) and (d) ae wrong . Concept of entropy is associated with second law of thermodynamics.
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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 correct relation of the first law of thermodynamics?

    A
    `Delta = q - W`
    B
    `Delta E = Delta q +Delta W`
    C
    `Delta E = q + W`
    D
    `Delta E = Delta q +W`

  • According to first law of thermodynamics,

    A
    energy is conserved
    B
    heat neither enters nor leaves the system
    C
    heat is constant in isothermal system
    D
    heat is a form of energy

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    Which of the following facts cannot be answered by the first law of thermodynamics?

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