The decomposition of NO2 into NO and O2 is endothermic. 2NO2(g) → 2NO(g) + O2(g) If the pressure inside the reaction vessel in which the equilibrium was achieved is unchanged, but the temperature inside the vessel is increased what will happen to the concentration of NO2 and KP for the reaction? Group of answer choices 1. The partial pressure of NO2 will decrease, but the value of KP will not be affected. 2. The partial pressure of NO2 and the value of KP will both decrease. 3. The partial pressure of NO2 will decrease, but the value of KP will increase. 4. The partial pressure of NO2 will increase, but the value of KP will decrease.   5. The partial pressure of NO2 and the value of KP will both increase.

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