Entropy Video Lessons

Concept

# Problem: Rank these systems in order of decreasing entropy.Rank from highest to lowest entropy. To rank items as equivalent, overlap them.i) 1 mol of oxygen gas at 273 K and 40 Lii) 1/2 mol of xenon gas at 100 K and 20 Liii) 1 mol of xenon gas at 273 K and 20 Liv) 1/2 mol of liquid xenon at 100 Kv) 1 mol of xenon gas at 273 K and 40 Lvi) 1 mol of carbon tetrachloride gas at 273 K and 40 Lvii) 1/2 mol of xenon gas at 273 K and 20 L

###### FREE Expert Solution
87% (152 ratings)
###### FREE Expert Solution

VI > I > V > III > VII > II > IV

First, we look at phases: gas > liquid > solid

So IV would be last.

Next, since everything else is a gas, we say that highest temperature and volumes lead to greatest entropy.

87% (152 ratings)
###### Problem Details

Rank these systems in order of decreasing entropy.

Rank from highest to lowest entropy. To rank items as equivalent, overlap them.

i) 1 mol of oxygen gas at 273 K and 40 L

ii) 1/2 mol of xenon gas at 100 K and 20 L

iii) 1 mol of xenon gas at 273 K and 20 L

iv) 1/2 mol of liquid xenon at 100 K

v) 1 mol of xenon gas at 273 K and 40 L

vi) 1 mol of carbon tetrachloride gas at 273 K and 40 L

vii) 1/2 mol of xenon gas at 273 K and 20 L