JEE PHYSICS MCQ: THERMODYNAMICS

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First law of thermodynamics is given by

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Correct option: A

dQ = dU + PdV

The correct answer is A (

dQ = dU + PdV

) because this is the standard mathematical representation of the first law of thermodynamics, stating that the change in heat equals the change in internal energy plus the work done.

More Questions from THERMODYNAMICS

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The work done in which of the following process is zero? Water is used to cool the radiators of engines in cars because A gas expand

0.25\,\,{m^3}

at constant pressure

{10^3}N/{m^2},

the work done is A thermodynamic process in which temperature

T

of the system remains constant though other variable

P

and

V

may change, is called What is the slope for an isothermal process? For adiabatic processes

\left( {\gamma = \frac{{{C_p}}}{{{C_v}}}} \right)