The same reaction takes place in two different vessels, which are initially at a

Question

The same reaction takes place in two different vessels, which are initially at atmospheric pressure (1 atm). The first vessel is rigid and does not expand with change in pressure; the second vessel will expand to maintain a pressure of 1 atm inside. Over the course of a reaction, the second vessel expands by 1 liter

What is the amount of PV work done by the reaction for each of the vessels?

Which vessel’s content has a higher enthalpy?

Based on the answer to part b, which vessel would you expect to have a higher temperature?

Explanation / Answer

(1) In first vessel, PV workdone is Zero

And in second vessel, PV work done = 1 x 1 = 1 L.atm

(2) Sencond vessel, since it has change in PV

(3) Second one

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