_____ What effect does a catalyst have on the value of the K_eq for a chemical r
ID: 484294 • Letter: #
Question
_____ What effect does a catalyst have on the value of the K_eq for a chemical reaction? no effect. it increases. it decreases. it increases if the concentrations are increased. it increases if the concentrations are decreased. _____ For the reaction 2A + 2B C, K_eq = 50. What is K_eq for the reaction A + B 1/2 C? 50. 25. 100. 7.07. 2500. 1000. 5.0. 500. _____ Review the data for the decomposition of A rightarrow B. What order is the reaction? zero order. 1st order. 2nd order. depends on the size of the container. _____ What is the half life of a pesticide, if a concentration of 100ppm of the pesticide in soil decomposes to 20 ppm in 5 years? 1.56. 2.15. 2.88. 3.66. 4.33. 5.00. 8.97. 10.0.Explanation / Answer
Addition of a catalyst speeds up the forward reaction and the reverse reaction by the same amount. Therefore, it does not cause any shift of the equilibrium. Because there is no shift, the value of the Keq will also remain unchanged. Addition of acatalyst to a system at equilibrium does not change the value of Keq
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.