Question

Consider the following system at equilibrium where H° = -111 kJ, and Kc = 0.159, at...

Consider the following system at equilibrium where H° = -111 kJ, and Kc = 0.159, at 723 K. N2(g) + 3H2(g) 2NH3(g)

If the VOLUME of the equilibrium system is suddenly increased at constant temperature:

The value of Kc:

A. increases. B. decreases. C. remains the same.

The value of Qc:

A. is greater than Kc. B. is equal to Kc. C. is less than Kc.

The reaction must:

A. run in the forward direction to reestablish equilibrium. B. run in the reverse direction to reestablish equilibrium. C. remain the same. It is already at equilibrium.

The number of moles of H2 will:

A. increase. B. decrease. C. remain the same.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

N2(g)    + 3H2(g)    ------------------> 2NH3(g)

If the VOLUME of the equilibrium system is suddenly increased at constant temperature ten pressure of the system will decrease. then reaction proceed to increase the pressure by producing more number of moles (toeatds reactants).

The value of Kc   remains the same

The value of Qc is greater than Kc

The reaction must run in the reverse direction to reestablish equilibrium

The number of moles of H2 will   increase

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Consider the following system at equilibrium where H° = -111 kJ, and Kc = 0.159, at...
Consider the following system at equilibrium where H° = -111 kJ, and Kc = 0.159, at 723 K. N2(g) + 3H2(g) --> 2NH3(g) When 0.32 moles of H2(g) are removed from the equilibrium system at constant temperature: 1- the value of Kc A. increases. B. decreases. C. remains the same. 2- the value of Qc A. is greater than Kc. B. is equal to Kc. C. is less than Kc. t 3- the reaction must: A. run in the forward...
Consider the following system at equilibrium where H° = 87.9 kJ/mol, and Kc = 1.20×10-2 ,...
Consider the following system at equilibrium where H° = 87.9 kJ/mol, and Kc = 1.20×10-2 , at 500 K. PCl5 (g) PCl3 (g) + Cl2 (g) When 0.32 moles of PCl5 (g) are added to the equilibrium system at constant temperature: the value of Kc A. increases. B. decreases. C. remains the same. the value of Qc A. is greater than Kc. B. is equal to Kc. C. is less than Kc. the reaction must: A. run in the forward...
Le Chantelier: Concentration Consider the following system at equilibrium where H=-16.1 kJ, and Kc=154, at 298...
Le Chantelier: Concentration Consider the following system at equilibrium where H=-16.1 kJ, and Kc=154, at 298 K. 2NO(g) + Br2(g) 2NOBr(g) When 0.36 moles of Br2(g) are added to the equilibrium system at constant temperature: the value of Kc A.increases                          B. decreases                           C. remains the same. the value of Qc A. is greater than Kc                            B. is equal to Kc                             C. is less than Kc the reaction must: A. run in the forward directin to restablish...
A) Consider the following reaction where Kc = 0.159 at 723 K. N2(g) + 3H2(g) 2NH3(g)...
A) Consider the following reaction where Kc = 0.159 at 723 K. N2(g) + 3H2(g) 2NH3(g) A reaction mixture was found to contain 4.94×10-2 moles of N2(g), 4.07×10-2 moles of H2(g) and 6.19×10-4 moles of NH3(g), in a 1.00 liter container. The reaction quotient, Qc, equals __________. The reaction__________________ A. must run in the forward direction to reach equilibrium. B. must run in the reverse direction to reach equilibrium. C. is at equilibrium. B) Consider the following reaction where Kc...
Consider the following system at equilibrium where H° = 198 kJ, and Kc = 2.90×10-2, at...
Consider the following system at equilibrium where H° = 198 kJ, and Kc = 2.90×10-2, at 1150 K: 2SO3(g) 2SO2(g) + O2(g) If the TEMPERATURE on the equilibrium system is suddenly decreased: The value of Kc A. Increases B. Decreases C. Remains the same The value of Qc A. Is greater than Kc B. Is equal to Kc C. Is less than Kc The reaction must: A. Run in the forward direction to restablish equilibrium. B. Run in the reverse...
Consider the following reaction where Kc = 6.50×10-3 at 298 K. 2NOBr(g) 2NO(g) + Br2(g) A...
Consider the following reaction where Kc = 6.50×10-3 at 298 K. 2NOBr(g) 2NO(g) + Br2(g) A reaction mixture was found to contain 0.101 moles of NOBr(g), 5.03×10-2 moles of NO(g), and 4.51×10-2 moles of Br2(g), in a 1.00 liter container. Is the reaction at equilibrium? If not, what direction must it run in order to reach equilibrium? The reaction quotient, Qc, equals . The reaction A. must run in the forward direction to reach equilibrium. B. must run in the...
The reaction N2(g) + 3H2(g) ⇌ 2NH3(g) has KC = 0.500 at 400*C. Write the reaction...
The reaction N2(g) + 3H2(g) ⇌ 2NH3(g) has KC = 0.500 at 400*C. Write the reaction quotient (QC) expression including the “i” subscripts. Then, find the value for QC if [N2] = 0.015 M, [H2] = 0.12 M, and [NH3] = 0.00054 M. Compare this value with KC and determine which direction the reaction will go towards.
-Consider the following reaction: 2HI(g) H2(g) + I2(g) If 3.69 moles of HI(g), 0.570 moles of...
-Consider the following reaction: 2HI(g) H2(g) + I2(g) If 3.69 moles of HI(g), 0.570 moles of H2, and 0.558 moles of I2 are at equilibrium in a 16.6 L container at 818 K, the value of the equilibrium constant, Kc, is_____________ .Consider the following reaction: 2NH3(g) N2(g) + 3H2(g) If 1.31×10-3 moles of NH3(g), 0.681 moles of N2, and 0.495 moles of H2 are at equilibrium in a 18.6 L container at 893 K, the value of the equilibrium constant,...
1) Consider the following reaction where Kc = 7.00×10-5 at 673 K. NH4I(s) --> NH3(g) +...
1) Consider the following reaction where Kc = 7.00×10-5 at 673 K. NH4I(s) --> NH3(g) + HI(g) A reaction mixture was found to contain 5.62×10-2 moles of NH4I(s), 1.12×10-2 moles of NH3(g), and 8.37×10-3 moles of HI(g), in a 1.00 liter container. Is the reaction at equilibrium? If not, what direction must it run in order to reach equilibrium? The reaction quotient, Qc, equals (???????) The reaction ????? A. must run in the forward direction to reach equilibrium. B. must...
1.) Consider the equilibrium N2(g) +3H2(g) = 2NH3 for which Kc = 6.00 x 10-2 at...
1.) Consider the equilibrium N2(g) +3H2(g) = 2NH3 for which Kc = 6.00 x 10-2 at 500 C a.) do reactants or products predominate in an equilibrium mixture at 500 C b.) An equilibrium mixture was found to have the following concentrations [H2] = .250 M [NH3] = 5.00 x 10-7 M at 500 C. What is the [N2] at equilibrium? c.) What is the numerical value of Kp at 500 C
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT