11.Thermodynamics
hard

ચક્રીય પ્રક્રિયા $A \rightarrow B \rightarrow C \rightarrow$ $A$ માં વાયુને અપાતી ઉષ્મા $5J $ હોય,તો પ્રક્રિયા $C \rightarrow A$ દરમિયાન થતું કાર્ય .... $J$

A

$-5 $

B

$-10$

C

 $-15$

D

$-20$

Solution

(a) For cyclic process. Total work done $ = {W_{AB}} + {W_{BC}} + {W_{CA}}$

$\Delta W_{AB} = P \Delta V = 10(2 -1) = 10J$ and $\Delta W_{BC} =0$ (as $ V = $ constant)

From FLOT, $\Delta Q =  \Delta U +  \Delta W  \Delta U = 0$ (Process $ABCA$ is cyclic)

==> $\Delta Q =  \Delta W_{AB} + \Delta W_{BC} + \Delta W_{CA}$

==> $5 = 10 + 0 +  \Delta W_{CA}$ ==> $\Delta W_{CA} = -5 J$

Standard 11
Physics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.