The Equilibrium Constants for the Chemical Reaction N₂(g)+ O₂(g) $\Delta$ Hº < 0
B)The Partial Pressure of NO(g)is Less at 2,200 K

question 99

Multiple Choice

The equilibrium constants for the chemical reaction N₂(g) + O₂(g)
2NO(g) are K_P = 1.1 * 10^-3 and 3.6 * 10^-3 at 2,200 K and 2,500 K, respectively. Which one of these statements is true?

• A)The reaction is exothermic, \(\Delta\)Hº < 0.
• B)The partial pressure of NO(g)is less at 2,200 K than at 2,500 K.
• C)K_P is less than K_c by a factor of (R
• T).
• D)The total pressure at 2,200 K is the same as at 2,500 K.
• E)Higher total pressure shifts the equilibrium to the left.

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