A 1.0 mol sample of N₂(g) undergoes the following two-step sequence
CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics
Problem
A 1.0 mol sample of N₂(g) undergoes the following two-step sequence.
Step 1: The gas is compressed isothermally at 300 K from 10.0 L to 5.00 L.
Step 2: The compressed gas is then heated at constant pressure from 300 K to 600 K.
Which row correctly indicates the sign of the entropy change for each step and for the overall process?
(a) Step 1 (+), Step 2 (+), Overall (+)
(b) Step 1 (−), Step 2 (+), Overall (+)
(c) Step 1 (−), Step 2 (+), Overall (0)
(d) Step 1 (−), Step 2 (+), Overall (−)