Question

Rank these systems in order of decreasing entropy. Rank from highest to lowest entropy. To rank items as equivalent, overlap them. View Available Hint(s) ResetHelp 1/2 mol of xenon gas at 273 K and 20 L1 mol of hydrogen peroxide gas at 273 K and 40 L1 mol of fluorine gas at 273 K and 40 L1 mol of xenon gas at 273 K and 20 L1/2 mol of liquid xenon at 100 K1/2 mol of xenon gas at 100 K and 20 L1 mol of xenon gas at 273 K and 40 L Least entropyGreatest entropy The correct ranking cannot be determined. Submit Part B

Answer 1

This would be the order

1 mol of hydrogen peroxide gas at 273 K and 40 L

1 mol of fluorine gas at 273 K and 40 L

1 mol of xenon gas at 273 K and 40 L

1 mol of xenon gas at 273 K and 20 L

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

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

1/2 mol of liquid xenon at 100 K

The gas will have a higher entropy than liquids that is why 1/2 mol of liquid xeno has the lowest entropy

entropy will increase as you increase the number of moles

Xenon (Xe) has only 1 atom whereas F2 has 2 atoms of F2

so more atoms will have a higher entropy

a small volume will reduce the movement of molecules, a big volume will allow the molecules to have a free movement so you can expect a higher entropy on a big volume

H₂O₂ has 4 atoms and has a volume of 40 L, this has the greatest entropy

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