An ideal gasundergoes isothermal compression from 5 m3 against a constant external pressure of 4 Nm-2 Heat relesed in this process is used to increase the temprature of 1 mole of Al . If molar heat capacity of Al is 24 J mol-1 K-1,the temperture of Al increases by:
1K
2K
Work Done for Irreversible Isothermal Expansion of an ideal gas -
- wherein
may be equal to or may not be equal to , but work done is always calculated by
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
= -16 Nm
= -16 J
Heat used to increase temperature of Al
16 J = 1 x 24
Option 2)Option 3)
1K
Option 4)2K
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