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Thermodynamics — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsThermodynamics2 Marks
Question
Can a system be heated and its temperature remains constant?
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Answer

If the system does work aganist the surrounding so that it compensates for the heat supplied, the tempreature can remain constant.

It is given that $\Delta\text{T}=0\Rightarrow\Delta\text{U=0}$

$\therefore\Delta\text{Q}=\Delta\text{U}+\Delta\text{W}$  

$\Rightarrow\Delta\text{Q}=\Delta\text{W}$ so heat supplied to the system is utilized in expansion system is isothermal.

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