Question

1912

For each of the following pairs, choose the substance with the higher entropy per mole at a given temperature.

a) Ar(l) or Ar(g),

b) He(g) at 3 atm pressure or He(g) at 1.5 atm pressure,

c) 1 mol of Ne(g) in 15.0 L or 1 mol of Ne(g) in 1.50 L,

d) CO2(g) or CO2(s).

Answer 1

answers :

a) Ar(g)

b) He(g) at 1.5 atm pressure

c) 1 mol of Ne(g) in 15.0 L

d) CO2(g)

Explanation :

a) gas molecules are more random than liquid molecules. so randomness increases entropy is also increases

b) pressure is low volume is more. more volume molecules have more randomness.

c) if same moles in both but volume is change. volume increases molecules have more space so there have more randomness

d) compare to solid gas molecules have more random ness. so entropy high