The Reaction Quotient Video Lessons

Video Thumbnail

Example

Problem: The equilibrium constant, Kp , for the reaction:    H2(g) + I2(g)  ⇋ 2HI(g) is 55.2 at 425°C. A rigid cylinder at that temperature contains 0.127 atm of hydrogen, 0.134 atm of iodine, and 1.055 atm of hydrogen iodide. Is the system at equilibrium? A)  Yes. B)  No, the forward reaction must proceed to establish equilibrium. C)  No, the reverse reaction must proceed to establish equilibrium. D)  Need to know the volume of the container before deciding. E)  Need to know the starting concentrations of all substances before deciding.

FREE Expert Solution
80% (112 ratings)
Problem Details

The equilibrium constant, Kp , for the reaction:    H2(g) + I2(g)  ⇋ 2HI(g)

is 55.2 at 425°C. A rigid cylinder at that temperature contains 0.127 atm of hydrogen, 0.134 atm of iodine, and 1.055 atm of hydrogen iodide. Is the system at equilibrium?

A)  Yes.

B)  No, the forward reaction must proceed to establish equilibrium.

C)  No, the reverse reaction must proceed to establish equilibrium.

D)  Need to know the volume of the container before deciding.

E)  Need to know the starting concentrations of all substances before deciding.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the The Reaction Quotient concept. You can view video lessons to learn The Reaction Quotient. Or if you need more The Reaction Quotient practice, you can also practice The Reaction Quotient practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofThe equilibrium constant, Kp , for the reaction:    H2(g) + ...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 3 minutes and 49 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Guerra's class at RUTGERS.