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The reversible expansion of an ideal gas...

The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is(are) correct?

A

`T_(1)=T_(2)`

B

`T_(3) gt T_(1)`

C

`W_("isothermal") gtW_("adiabatic")`

D

`Delta U_("isothermal") gt Delta U_("adiabatic")`

Text Solution

Verified by Experts

The correct Answer is:
A, D
(A) `T_(1)=T_(2)` (due to isothermal)
(B) `T_(3) gtT_(1)` (incorrect) cooling will take place in adiabatic expansion)
(C )`W_("isothermal") gt W_("adiabatic")` { with sing, this is incorrect}
(D) `Delta U_("isothermal")=0 gt Delta U_("adiabatic")= -ve`
So, answer is `(A,D)`
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