Exercise 17.82

Nitrogen dioxide, a pollutant in the atmosphere, can combinewith water to form nitric acid. One of the possible reactions isshown below.

Part A

Calculate ?G? for this reaction at25 ?C.
3NO2(g)+H2O(l)?2HNO3(aq)+NO(g)

?G? =

kJ

Part B

Calculate Kp for this reaction at25 ?C.

Kp =

Part C

Comment on the spontaneity of the reaction.

Comment on the spontaneity of the reaction.

	The reaction is spontaneous.
	The reaction is nonspontaneous.