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JEE PHYSICS MCQ: THERMODYNAMICS

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Assertion: For an isothermal process in an ideal gas, the heat obsorbed by the gas is entirely used in the work done by the gas.
Reason: During a process taking place in a system, the temperature remains constant then the process is isothermal.
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Correct option: B
If both assertion and reason are true but reason is not correct explanation of the assertion
Option B is correct. Both the assertion and the reason are true, but the reason doesn't explain the assertion. The assertion is true because in an isothermal process, ΔU=0\Delta U = 0, so Q=WQ = W. The reason is a definition of an isothermal process.

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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  m30.25\,\,{m^3} at constant pressure 103N/m2,{10^3}N/{m^2}, the work done is A thermodynamic process in which temperature TT of the system remains constant though other variable PP and VV may change, is called What is the slope for an isothermal process? For adiabatic processes (γ=CpCv)\left( {\gamma = \frac{{{C_p}}}{{{C_v}}}} \right)
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