A (1) +3B (g) + 2 (aq) + 4D(g) + 7E(s) AH = 25 kJ/mole a) Write the equilibrium constant expression b) Would the reaction shift toward the products or reactants if the volume of the sealed react container was suddenly doubled? Would the reaction shift toward the products or reactants if the temperature was increased di Would the reaction shift toward the products or reactants if more A was added? e) Would the value of K change in any...
Consider the following equilibrium reaction. P4S3(g) + 8O2(g) = P4010(s) + 3SO2(9) AH = -3677 kJ If heat is removed from an equilibrium mixture of P4S3, P4010, O2, and SO2, then O Keq will decrease. the system will remain at equilibrium with no change in concentrations. the system will shift toward reactants to re-achieve equilibrium. O the system will shift toward products to re-achieve equilibrium. more information is needed to determine the effect on the equilibrium.
Again, consider the exothermic reaction, with K=3.00: 2A(aq) + B(g) ⇌ C(aq) + D(g) With initial concentrations of [A] = 0.5M, [B] = 2.0M, [C] = 1.0M, and [D] = 1.5M. For each of the following disruptions, predict weather the reaction will go forward (toward products), reverse (towards reactants), or be unchanged. a) [A] increased to 2.0M b) Pressure doubled. c) Volume of solution doubled by dilution. d) The temperature is increased by 100.0oC (15.83 from text) When 1.50mol CO2...
For the reaction shown below, ΔH° = -61.9 kJ mol-1 and ΔS° = -76.7 J K-1 mol-1. Si (s) + 2 H2 (g) ⇌ SiH4 (g) Choose one of the following: TOWARD PRODUCT, TOWARD REACTANT, NO CHANGE to describe what will happen in each of the situations described below (5 pts each) a. If some Si(s) is added to the system the equilibrium will shift b. If some H2 (g) is removed from the system, the equilibrium will shift c. If the...
Consider the following reversible reaction: A(g) + 3B(g) ⇌ AB3(g) \DeltaΔH = -245 kJ/mol On your Calcs sheet, please do the following: a) write the expression for the equilibrium constant for this reaction. b) discuss what effect (if any) would EACH of the following procedures have on the equilibrium, and explain the reason(s.) In here, choose the option that would cause a change in the equilibrium constant. Increasing the volume of the reaction container. Increasing the concentration of product AB3 Increasing...
Now let us do some Le Chatelier C(s)+H2O (g)←→CO (g) +H2 (g)AH-+131 kJ (in case you don't remember, this is an endothermic reaction). 4. A rigid container holds a mixture of graphite pellets (C(s)), water vapor, carbon monoxide gas, and hydrogen gas at equilibrium. State whether the number of moles of CO (g) in the container will increase, decrease, or remain the same after each of the following disturbances is applied to the original mixture. For each case, assume that...
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole)=-318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH (OF,(g)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent.
For the reaction CaC2O4(s) ++ Ca2(aq)+ C204(aq), K = 2.3 x 10. (next two questions) 14. What is the equilibrium expression for this reaction? 15. If someone mixed 1.00 mole of calcium ions with 0.500 mole of oxalate ions (1.00mol Ca2 and 0.500mol C2O42) in a 5.00L vessel, what would be the predominate species present at equilibrium? Which reactants and/or products would be present in appreciable amounts? 16. What general temperature and pressure conditions would cause a maximum yield of...
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole) -318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH;(OF,(8)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 6.(20 pts) Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL of water at 81.8°C...
1. For the following reaction N2 (g) + 3 H2(g) — 2 NH3(g) AH° = -92.4 kJ K = 1.245 x 10-5 at 427°C for each change listed, predict the equilibrium shift and the effect on the indicated quantity. Direction of Shift Gt; or no change) Effect on Quantity Change Effect (increase, decrease, or no change) amount of NH3(g) amount of N2(g) (a) decrease in volume (b) Decrease temperature (c) addition of H2(g) (d) addition of NH3(g) (e) removal of...