Question

Q1; Calculate the change in entropy accompanying the isothermal expansion of 5
moles of an ideal gas at 330K until its 5 volume has increased six times.

Q2; 1 mole of hydrogen gas and 9 mole of N, are mixed at 298 K and 1 atmosphere ,Assuming
the ideal behavior of gas, calculate entropy of mixing per mole of the mixture
formed.


​

Answer 1

Explanation:

ANSWER

ΔS=2.303 n Rlog(

V

1

V

2

)

=2.303×10×8.314log(

10

100

)=191.47 JK

−1

Thus ΔS=191.47JK

−1