First slide

Graphs

Question

A monoatomic ideal gas undergoes a process ABC. The heat given to the gas is

Moderate

A

7.5 PV
B

12.5 PV
C

16.5 PV
D

20.5 PV

Solution

W_AB= $\large \frac{1}{2}5Pv\, = \,2.5Pv$
$\large {W_{BC}}\, = \,\frac{1}{2} \times 4P \times 4v$
               = 8 Pv
$\large \Delta U\, = \,n.{C_v}.\left( {{T_c} - {T_A}} \right)$
            $\large = \,n.\frac{{3R}}{2}\left( {{T_c} - {T_A}} \right)$
            $\large \, = \,\frac{3}{2}\left( {p \times 6v - 2p \times V} \right)$
            $\large = \,6Pv$
$\large \therefore \,Q\, = \,\Delta U + W$
             $\large = \,6Pv\, + (8PV + 2.5Pv)$
             = 16.5 Pv

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App