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please provide the complete soution of question..................

please provide the complete soution of question..................

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Grade:12th pass

1 Answers

Arun
25750 Points
3 years ago
Work Done for Irreversible Isothermal Expansion of an ideal gas -
 
W= -P_{ext}\left ( V_{f} -V_{i}\right )
 
- wherein
 
P_{ext} may be equal to P_{f} or may not be equal to P_{f}, but work done is always calculated by P_{ext}
 
 
 
As we have learned in isothermal expansion.
 
The work done on isothermal irreversible for ideal gas
 
= -Pext (V2 - V1)
 
= -4N/m2 (1m3 - 5m3)
 
=16 Nm
 
For an isothermal process for ideal gas
 
\Delta U = 0 , q = -W
 
= -16 Nm
 
= -16 J
 
Heat used to increase temperature of Al
 
16 J = 1 x 24 \frac{J}{mol. K} \times \Delta T
 
\Delta T = \frac{2}{3}K
 
 

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