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11 Dec 2019

The equilibrium constant for the reaction N2(g) + O2(g) = 2 NO(g) is 1.69 at 2300 K. A mixture consisting of 5.0 g of nitrogen and 2.0 g of oxygen in a container of volume 1.0 dm3 is heated to 2300 K and allowed to come to equilibrium. Calculate the mole fraction of NO at equilibrium.

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Beverley Smith
Beverley SmithLv2
12 Dec 2019

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Related questions

Consider the equilibrium

N2(g) + O2(g) ⇄ 2 NO(g)

At 2300 K the equilibrium constant K = 1.7 × 10-3. Suppose that 0.0150 mol NO(g), 0.250 mol N2(g), and 0.250 mol O2(g) are placed into a 10.0-L flask and heated to 2300 K. The system is not at equilibrium. Determine the direction the reaction must proceed to reach equilibrium and the final equilibrium concentrations of each species.

*to the right

*to the left

[N2] = ______ mol/L

[O2] = ______ mol/L

[NO] = ______mol/L

The air pollutant NO is produced in automobile engines from the high-temperature reaction N2(g)+O2(g)⇌2NO(g);Kc=1.7×10−3 at 2300 K. Part A If the initial concentrations of N2 and O2 at 2300 K are both 1.50 M, what are the concentrations of NO when the reaction mixture reaches equilibrium? Express your answer to two significant figures and include the appropriate units.

Part B If the initial concentrations of N2 and O2 at 2300 K are both 1.50 M, what are the concentrations of N2 when the reaction mixture reaches equilibrium? Express your answer to three significant figures and include the appropriate units.

Part C If the initial concentrations of N2 and O2 at 2300 K are both 1.50 M, what are the concentrations of O2 when the reaction mixture reaches equilibrium? Express your answer to three significant figures and include the appropriate units.

The air pollutant NO is produced in automobile engines from the high-temperature reaction:
N2(g)+O2(g)⇌2NO(g) Kc=1.7×10−3at 2300 K.

Part A

Calculate the equilibrium concentration of [N2] if the initial concentrations are 2.27 M N2 and 0.58M O2. (This N2/O2 concentration ratio is the ratio found in air.)

Part B

Calculate the equilibrium concentration of [O2].

Part C

Calculate the equilibrium concentration of [NO].

Please show work! Thank you

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