18. Consider the equilibrium reaction given below (the value of the equilibrium constant is 3.92). Determine...
A Which one of the following will change the value of an equilibrium constant? a) Varying the initial concentrations of reactants b) Varying the initial concentration of products c) Changing the volume of the reaction vessel d) Changing temperature e All of the above 5) The equililbrium constant for the gas phase reaction N2(g)+3H2(g) 2NH,(g) is Keg 4.34 x 10 at 300°C. At equilibrium a) products predominate b) only products are present reactants predominate d) only reactants are present roughly...
Chemical Equilibrium Characteristics Consider the reaction: H20(g)Co(g) = H2(g) Co2(g) Which the following statements are true and which are false. In general, at a given temperature, the reaction quotient (Q) is a constant. true Amounts of all reactants and products corresponding to an exact equilibrium composition for this reaction are sealed in a vessel. The CO placed in the vessel is labelled with 14C. After an indefinite period false time 14C may be found in both CO and CO2 molecules....
0.0455 O 0.0330 QUESTION 8 Consider the reaction shown below. AH is positive for the reaction. 4CuO (s) + CH4 (9) CO2(g) + 4Cu (s) + 2H20 (9) State whether each change will cause the reaction to shift to the left, to the right, or no change. Enter the words "left","right" or "no change (without the quotation marks) into each blank. A coldfinger is added to condense out water vapor (H20 (g)) in the reaction mixture. The partial pressure of...
Given the thermodynamic data below, determine the equilibrium constant for the following two reactions at 25 oC. Predict what will happen to ΔG, how the direction of the reaction will shift, and how the spontaneity will be affected when more BaSO4(s) is added to reaction a), and more NH4+(aq) is added to reaction b). Substance ∆Gof(kJ/mol) Substance ∆Gof(kJ/mol) Substance ∆Gof kJ/mol) BaSO4(s) –1353.1 SO42–(aq) –741.99 NH3(aq) –26.5 Ba2+(aq) –560.66 OH–(aq) –157.30 H2O(l) –237.2 NH4+(aq) –79.5 a. BaSO4(s) ⇌ Ba2+(aq) +...
The equilibrium constant, Kc, for the following reaction is 10.5 at 350 K. 2CH2Cl2(g) >>CH4(g) + CCl4(g) Calculate the equilibrium concentrations of reactant and products when 0.327 moles of CH2Cl2 are introduced into a 1.00 L vessel at 350 K. [CH2Cl2] = M [CH4] = M [CCl4] = M The equilibrium constant, Kc, for the following reaction is 1.29×10-2 at 600 K. COCl2(g) >>CO(g) + Cl2(g) Calculate the equilibrium concentrations of reactant and products when 0.275 moles of COCl2(g) are...
Chemical Equilibrium Characteristics
Consider the reaction:
H2O(g) + CO(g)
H2(g) + CO2(g)
Which of the following statements are true and which are
false.
true false At equilibrium, the overall composition of
the reaction mixture is not changing.
true false At equilibrium, individual molecules may be
subject to rapid chemical transformations.
true false The rate at which equilibrium is established
can be inferred from the magnitude of the equilibrium constant.
true false When Q < K the system will spontaneously
shift to the right.
true...
at 1000 K? for the reaction 12. The equilibrium constant, K 2 HI(g) H2(g) I2(g) is 55 at 425 C. Ifa 0.40 mol sample of HI was introduced into a 1.00 mL. reaction vessel at 425 C, what are the equibrium concentrations of H2, 12, and HI? 13. Consider the following reaction which is at equilibrium at 25 C 2 NH3(g) + CO2(g) A-152.2 kJ Ni4(NH2CO2X) In which direction will the reaction shift if (a) the pressure is increased (b)...
oi Prelab 11, Equilibrium Control of a Reaction me Consider the following equilibrium reaction Predict which direction the equilibrium will shift (left, towards reactants or right, towards products) when you perform the following actions: Shift Right Shift Left Action Add CH4 to the reaction Add CO, to the reaction Add CO to the reaction Add H, to the reaction Remove CH4 from the reaction Remove CO2 from the reaction Remove CO from the reaction Remove H2 from the reaction Increase...
6) Distrubuting Equilibrium a) The equilibrium constant, K, for the following reaction is 10.5 at 350 K 2CH2Cl2(g)CH4(g + CCl4(g) An equilibrium mixture of the three gases in a 1.00 L flask at 350 K contains 5.32x10-2 M CH2C2, 0.172 M CH4 and 0.172 M CCI4. What will be the concentrations of the three gases once equilibrium has been reestablished, if 9.58x102 mol of CH4(g is added to the flask? CH2Cl2l [CH4 [CCI4] b) The equilibrium constant, K, for the...
#1000K? 12. The equilibrium constant,ke, for the reaction H() + 12(g) 2 HI(g) 13542 0 40 mol sample of HI was introduced into a 1,00 mL reaction vessel at 125 °C, what are the equibrium concentrations of H2. 12, and HI? 13. Consider the following reaction which is at equilibrium at 25°C: 2NH3(g) + CO2(g), Alº - 152.2 kJ (c) the temperature is increased In which direction will the reaction shini (a) the pressure is increased (b) the pressure is...