Answer:
1) 2726.5 J/K 2) decrease 3) 0
Explanation:
1)
change in entropy is given by [tex]\Delta s\:=\frac{Q}{T}[/tex]
here Q=mL where L is the latent heat of vaporization. therefore
[tex]Q=\frac{mL}{T}[/tex][tex]\Delta s\:=\frac{0.45X22.5X10^5}{100+273}=2726.5\:\:\frac{J}{K}[/tex]
2) [tex]\Delta S=\frac{-Q}{T}\:[/tex]
since the heat is taken from surroundings, the change in entropy is negative therefore entropy of surrounding will decrease.
3) since there is no heat exchange with universe therefore , Q=0 in this case
[tex]\Delta S=\frac{Q}{T}\:=\frac{0}{T}=0[/tex]
