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Explain the following terms : (i) Firs...

Explain the following terms :
(i) First law of thermodynamics
(ii) Standard enthalpy of formation

Answer

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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

  • First law of thermodynamics states that

    A
    system can do work
    B
    system has temperature
    C
    system has pressure
    D
    heat is form of enrgy

  • First Law of Thermodynamics leads to

    A
    Conservation of mass,
    B
    Conservation of linear momentum,
    C
    Conservation of energy,
    D
    Conservation of angular momentum.

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