Equilibrium 3

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These figures show the evolution of a system, at constant temperature gaseous system, from state 1 (non-equilibrium) to state 2 (equlibrium)

 

 

 

What will be the final pressure in the reactor if the initial pressure was P_i.

	Wrong. There is a change in the number of molecules. It must be a change in the pressure.
	Wrong. The numer of molecules increases. That implies an increase, not a decrease, of the pressure.
	Wrong. The observed increase in the number of molecules does not justify doubling the pressure
	CORRECTO. In this process number of gas molecules increased a 20%. The pressure must increase on the same percentage.

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