1.

Based on the first law of thermodynamics, which one of the following statement is correct?

Answer»

For an ISOTHERMAL PROCESS, q=+W
for an ISOCHORIC process, `DeltaU=-q`
For an ADIABATIC process, `DeltaU=-W`
For a CYCLIC process, q=-W

Solution :`DeltaU=q+w`
For an isothermal process, `DeltaU=0,""q=-W`
For an isochoric process, `W=0,""DeltaU=q`
For an adiabatic process, `q=0,""DeltaU=W`
For a cyclic process, `DeltaU=0,""thereforeq=-W`


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