describe thermodynamic scale changes when a gas is adsorbed on a solid
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That is of 2 types of adsorption in this case :-
1)physisorption: gas is bounded by van der wal's force.
2) chemisorption: gas is bounded chemically
Now if it's spontaneous Gibbs energy will be negative if not positive.
And remember by adsorption the system gets ordered so you can expect a negative impact on entropy.
Now, the Thermodynamic change from more entropy to less entropy in terms of magnitude should release energy from the system, so, it can be exothermic, though it depends on the specific example you are thinking.
I think it's helpful for u
1)physisorption: gas is bounded by van der wal's force.
2) chemisorption: gas is bounded chemically
Now if it's spontaneous Gibbs energy will be negative if not positive.
And remember by adsorption the system gets ordered so you can expect a negative impact on entropy.
Now, the Thermodynamic change from more entropy to less entropy in terms of magnitude should release energy from the system, so, it can be exothermic, though it depends on the specific example you are thinking.
I think it's helpful for u
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