Which of the following is/are equal once equilibrium is established? a. the conc

Question

Which of the following is/are equal once equilibrium is established? a. the concentrations of reactant and products b. the rates of the forward and reverse reactions c. the time that a particular atom or molecule spends as a reactant and product d. the rate constants of the forward and reverse reactions e. all of the above are equal For the equilibrium 2 Hl(g) H_2 (g) + I_2 (g), K_p = 29.1 at 1000.0 K. What is K_c at 1000.0 K for the equilibrium 1/2 H_2 (g) + 1/2 H_ 2 (g) HI(g)? Consider the equilibrium, Cl_2 (g) + 2 NO(g) 2 NOCl(g). When 2.000 M NOC is placed in a tank at 500.0 K and allowed to come to equilibrium, the equilibrium concentration of Cl_2 is 0.979 M. Calculate K. a. 45.6 b. 15.2 c. 0.938 d. 2130 c. 4.70 10^1 There are many reactions involving nitrogen, oxygen, and nitrogen oxides at high temperatures. At 1000.0 K_1 the following reactions have the given equilibrium constants: N_2 O_4 (g) 2 NO_2 (g) K_1 = 1.5 10^1/2 N_2 (g) + O_2 (g) NO_2 (g) K_1 = 1.2 10^Calculate the theoretical value of the equilibrium constant for N_2 (g) + 2 O_2 (g) N_2 O_2 (g).

Explanation / Answer

1- Equilibirum is the stage where rate of forward and backward reaction become equal. It is not necessary for reactant and product concentration to be equal at equilibirum stage. The rate constant for the forward and backward reaction may be different or same.

Therefore option B is correct

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