The reaction SO,Cl,(g) 2 SO2(g) + Cl,(g) has an equilibrium constant at 100°C of 2.40. Calculate the concentration of SO, that will be present at 100°C in equilibrium with SO2C1, (at a concentration of 3.6 x 10-4 mol L-1) and chlorine (at a concentration of 6.9 × 10-3 mol L¯1).

A 0.066 mol sample of formaldehyde vapor, CH₂O, was placed in a heated 500 mL vessel and some of it decomposed. The reaction is CH,O(g) = At equilibrium, the CH₂O(g) concentration was 0.060 mol L-¹. Calculate the value of Kc for this reaction? Kc = H₂(g) H2(g) + CO(g) i

1. Consider the following equilibrium for which AH < 0 2SO2(g) + O2(g) =2SO3(g) How will each of the following changes affect an equilibrium mixture of the three gases. (a) 02 (g) is added to the system. (b) the reaction mixture is heated. (c) the volume of the reaction vessel is doubled (d) a catalyst is added to the mixture. (e) the total pressure of the system is increased by adding a noble gas. (f) SO:(g)is removed from the system?

Phosphorus pentachloride decomposes according to the chemical equation Kc = 1.80 at 250 °C PC1, (g) PC13 (g) + Cl₂ (g) A 0.1584 mol sample of PC1, (g) is injected into an empty 2.00 L reaction vessel held at 250 °C. Calculate the concentrations of PC1, (g) and PC1₂(g) at equilibrium. [PC1,] = [PC1₂] = 0.0792 Incorrect Incorrect M M

Consider the reaction: P(s) + 3/2Cl₂ (g) → PC13 (9) Write the equilibrium constant for this reaction in terms of the equilibrium constants, K₁ and K₂, for the reactions below: P(s) + 5/2Cl₂ (g) ⇒ PCl5(9) K₁ PC13 (g) + Cl2 (g) PC15 (9) K₂ For answers with both a subscript and a superscript, enter the subscript first. For example, enter K² if the first equilibrium constant should be squared. K =

At 25°C, the equilibrium constant for the reaction Blg) + Clg) 2A(3) is K,-0.0735.If the three gases are mixed in a rigid container having partial pressuros of 3.35, 185 and 0.693 atm for A, B and C, respectively, is the system at equilibrium? The system is at equilibrium. The reverse reaction must proceed to establish equilibrium. The volume of the container must be known to answer the question. The concentrations of all substances must be known to answer the question. The forward reaction must praceed to establish equilibrium,

Consider the following chemical equilibrium: С (s)+ 2 Н, (g) — CH (g) Now write an equation below that shows how to calculate K, from K̟ for this reaction at an absolute temperature T. You can assume T is comfortably above room temperature. If you include any common physical constants in your equation be sure you use their standard symbols, found in the ALEKS Calculator. K¸ = []

What is the equilibrium concentration of BCl3 if a solid sample of PH3BC13 is placed in a 0.250 L closed vessel at 80.0 °C and decomposes until equilibrium is reached? Assume that there is solid present at equilibrium. At 80.0 °C, Kc = 1.87 x 10-³ for the reaction: PH3BC13(s) ⇒ PH3(g) + BCl3(g) Provide your answer in M, without units, and use the correct number of significant figures. 534.8

Hydrogen gas and bromine gas are mixed in a sealed container at 250°C and allowed to reach equilibrium. H2(g) + Br2(g) = 2HB1(g) The equilibrium constant for this reaction at 250°C is 65.5. At equilibrium, the concentration of H2 is 0.0510 mol L*1 and the concentration of Brris 0.174 mol L-1 at 250°C. (i) Write the equilibrium constant expression for the above reaction. (ii) Calculate the concentration of HBr in the equilibrium mixture at 250°C (iii) Explain what happens to the concentration of HBr you calculated in (ii) above if the pressure of the equilibrium mixture is increased.

The equilibrium constant, K., for the following reaction is 1.29×102 at 600 K. COCI,(e)=CO(g) + Cl,(g) Calculate the equilibrium concentrations of reactant and products when 0.270 moles of COCl2(g) are introduced into a 1.00 L vessel at 600 K. [COC,] = | M [CO] M [Cl,] M