Which of the following is true?<br /> i. If two reactions are added together the equilibrium constant of the resulting reaction is equal to the equilibrium constants of the two original reactions added together.<br /> ii. If the products and reactants of a reaction are swapped the equilibrium constant of the new reaction is equal to the negative of the equilibrium constant of the original reaction.
Question 5 options:
i only |
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ii only |
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both i and ii |
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neither i or ii |
Which of the following is true?<br /> i. If two reactions are added together the equilibrium...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
Question 2 1 pts Which statement(s) concerning the reaction is/are true? 2ABig) Alg) + Bale) K-2.9 x 10-85 There are fewer moles of reactants than products at equilibrium, because the equilibrium constant is small There are more moles of reactants than products at equilibrium, because the equilibrium constant is large. There are near equal amounts of reactants and products at equilibrium because the equilibrium constant is close to 1 There are more moles of reactants than products at equilibrium, because...
Which of the following statements about equilibrium expressions and equilibrium constants are correct? Choose all that apply. Check all that apply. For chemical reactions in which all reactants and products are gases, K. can never be equal to K The equilibrium expression for a reaction involving only gases can be written in terms of either partial pressures or concentrations. A homogeneous equilibrium is one where all reactants and products are in the same physical state, When a chemical reaction is...
What is the law of mass action? Is it true that the value of K depends on the amounts of reactants and products mixed together initially? Explain. Is it true that reactions with large equilibrium constant values are very fast? Explain. There is only one value of the equilibrium constant for a particular system at a particular temperature, but there is an infinite number of equilibrium positions. Explain.
What is true about the following reaction at 25°C?<br /> HBrO(aq) + NaCl(aq) = NaBrO(aq) + HCl(aq) OK> 1 hence there will be mostly products at equilibrium. OK> 1 hence there will be mostly reactants at equilibrium. OK< 1 hence there will be mostly products at equilibrium. OK< 1 hence there will be mostly reactants at equilibrium. Question 8 (1 point) Which of the following would be more soluble in an acidic solution?<br />i. LiBr(s)<br /> ji. KNO3(s) O both...
Which of the following is a true statement about chemical equilibria in general? A. At equilibrium the total concentration of products equals the total concentration of reactants, that is, [products] = [reactants]. B. Equilibrium is the result of the cessation of all chemical change. C. There is only one set of equilibrium concentrations that equals the Kc value. D. At equilibrium, the rate constant of the forward reaction is equal to the rate constant for the reverse reaction. E. At...
Question 3 1 pts Which statement(s) concerning the reaction shown is/are TRUE, if it is at equilibrium? A2X442AX2 The forward and reverse reactions have stopped. The concentrations of AX and AX, are constant. The concentrations of AX and AX2 are equal. If a catalyst is added, the equilibrium will shift towards the products. If a catalyst is added, the equilibrium will shift towards the reactants. Question 4 1. nts
Which one of the following statements is true? O A catalyst alters the equilibrium constant of a reaction and is neither a product nor a reactant in the overall equation. In order for a reaction to occur, product and reactant molecules must collide with each other. The transition state is a short-lived, high energy state, intermediate between products and reactants. In reactions that are first order in one reactant and first order in another, the slow step always involves a...
Which of the following statements is true about chemical equilibrium? Select all that apply. At chemical equilibrium, the reactants have been completely consumed. At chemical equilibrium, both reactions stop completely. At chemical equilibrium, the concentrations of the species involved in the reaction stay constant (in the absence of an external perturbation). At chemical equilibrium the rate of the forward reaction is equal to the rate of the reverse reaction.
Which of the following statements are true in this equilibrium state? A. The concentrations of reactants and prodcuts are still changing with time. B. The concentrations of reactants and products are equal. C. The rates of the forward and reverse reactions are equal. D. The rate of the reverse reaction is greater than that of the forward reaction. E. The rate of the forward reaction is greater than that of the reverse reaction.