Science

ChemistryQ&A LibraryFor a system, H2(g) + I2(g) ⇌ 2 HI(g), Kc = 62.9 at 750 K. 2.80 moles of HI were placed in a 10.0-liter container, brought up to 750 K, and allowed to come to equilibrium. Which situation described below is true, at equilibrium?a. [HI] = 2 × [H2] b. [HI] = [H2] c. [HI] < [H2] d. [HI] > [H2] e. [H2] > [I2]Question

Asked Feb 13, 2020

12 views

For a system, H2(g) + I2(g) ⇌ 2 HI(g), Kc = 62.9 at 750 K. 2.80 moles of HI were placed in a 10.0-liter container, brought up to 750 K, and allowed to come to equilibrium. Which situation described below is true, at equilibrium?

a. [HI] = 2 × [H2] b. [HI] = [H2] c. [HI] < [H2] d. [HI] > [H2] e. [H2] > [I2]

Step 1

The reverse reaction can be written as shown below.

The expression for equilibrium constant for the above reaction can be written as shown below,

Step 2

Given that, the initial number of moles of HI is 2.80 mol. The volume of the container is 10.0 L. The initial concentration of HI can be calculated as given below.

An equilibrium table can be set up as given below.

Now, these values in the fourth row can be inserted in the equilibrium constant expression as shown below.

Now, the above equilibrium expression can be solved for

...Find answers to questions asked by student like you

Show more Q&A

Q: Write the structure of Ala-Gly-Val

A: The molecular structure of alanine, glycine, and valine are shown below.

Q: What is the mass number of an ion with 106 electrons, 159 neutrons, and a +1 charge? Express your an...

A: Since it is an ion, the number of electrons is calculated with the expression given below in which n...

Q: nformation Securit X A ALEKS - Ciapha Dorley - Learn www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsl...

A: The rate constant (k) for the reaction is calculated as shown below where r is the initial rate of t...

Q: I'm unsure of how to complete the question I attached. It's the question highlighted in yellow.

A: The correct option is C). Pressure exerted by Hydrogen gas at 25oC = Total Pressure – aqueous tensio...

Q: An expandable weather balloon reached a height at which its volume was 24.5 L, the temperature was 3...

A: Given: Temperature T1 = 371 K Volume V1 = 24.5 L. Pressure P1 = 775 torr = 1.02 atm. Pressure P2 = 5...

Q: Determine the wavelength of a photon absorbed when an electron moves from the 3 to the 6 level in a ...

A: Given data:

Q: Calculate the theoretical mass %% of CC and HH in propenoic acid.

A: Click to see the answer

Q: [References] IN TERACTIVE EXAMPLE Calculating a Formula from Percent Composition Valeric acid is an ...

A: Click to see the answer

Q: A mixture contains 24.5% A, 35.8% B, the remainder being component C. If you have 31.2g of this mixt...

A: Given: The weight of given mixture is 31.2 g Percentage of component A is 24.5% Percentage of compon...