Question

2 moles of an ideal gas expand isothermally and reversibly from 2L to
20L at 270C. Find w, q and change in internal energy.

Answer 1

Answer:

CHEMISTRY

Calculate work done when 2 mole of an ideal gas expands isothermally and reversibly at 300 K from 10 atm pressure to 2 atm pressure.

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ANSWER

W=−nRTln

P

2

P

1

Given that,

n=2moles

T=300K

P

1

=10 atm; P

2

=2 atm

Now,

W=−2×8.314×300ln(

2

10

)

W=−8.028 kJ.