The Reaction of Nitrogen with Oxygen to Form Nitrogen Dioxide $\rightarrow$

question 93

Multiple Choice

The reaction of nitrogen with oxygen to form nitrogen dioxide gas at 25 C and 1 atm requires approximately 66.4 kJ of thermal energy.The change in internal energy is about 68.9 kJ.Which statement below is true?
2N₂ (g) +O₂ (g) $\rightarrow$ 2 NO₂ (g)

• A)The reaction is exothermic and work is done on the system by the surroundings.
• B)The reaction is exothermic and work is done by the system on the surroundings.
• C)The reaction is endothermic and work is done on the system by the surroundings.
• D)The reaction is endothermic and work is done by the system on the surroundings.
• E)The heat and work associated with the reaction cannot be determined without more information.

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