Grade 11Physical Chemistry
I need explanation at molicular level for the graph.
I need explanation at molicular level for the graph.
1 Answer
Ramreddy
Approved Tutor Answer11 Years agoIn case of He and H2 the graph is above the Z=1 line implying that they always show positive deviation. If Z>1 then volume of gas particles is dominant(At high pressure) but if Z<1 then volume occupied by gas is less than its volume (if it behaves as an ideal gas). This is due to dominant attractions between gas molecules. Remember on thing
1. Z<1 (attractions dominant)
2. Z>1 (volumeoccupied by gas molecules is not negigible)
1. Z<1 (attractions dominant)
2. Z>1 (volumeoccupied by gas molecules is not negigible)
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