1
answer
0
watching
472
views
16 Nov 2019
At elevated temperatures, methylisonitrile (CH_3NC) isomerizes to acetonitrile (CH_3CN): CH_3NC (g) rightarrow CH_3CN (g) At the start of an experiment, there are 0.200 mol of reactant and 0 mol of product in the reaction vessel. After 25 min, 0.121 mol of reactant (CH_3NC) remain. There are ________ mol of product (CH_3CN) in the reaction vessel. A) 0.200 B) 0.121 C) 0.079 D) 0.321 E) 0.022 What is the rate constant (in s^-1) of a first-order process that has a half-life of 503 s? A) 7.26 times 10^2 B) 1.99 times 10^-3 C) 3.49 times 10^2 D) 1.38 times 10^-3 The rate constant for a particular second-order reaction is 0.47 M^-1 s^-1. If the initial concentration of reactant is 0.25 mol/L, it takes __________ s for the concentration to decrease to 0.20 mol/L. A) 1.4 B) 0.20 C) 1.0 D) 2.1 E) 0.47 Given the following rate law, how does the rate of reaction change if the concentration of Y
At elevated temperatures, methylisonitrile (CH_3NC) isomerizes to acetonitrile (CH_3CN): CH_3NC (g) rightarrow CH_3CN (g) At the start of an experiment, there are 0.200 mol of reactant and 0 mol of product in the reaction vessel. After 25 min, 0.121 mol of reactant (CH_3NC) remain. There are ________ mol of product (CH_3CN) in the reaction vessel. A) 0.200 B) 0.121 C) 0.079 D) 0.321 E) 0.022 What is the rate constant (in s^-1) of a first-order process that has a half-life of 503 s? A) 7.26 times 10^2 B) 1.99 times 10^-3 C) 3.49 times 10^2 D) 1.38 times 10^-3 The rate constant for a particular second-order reaction is 0.47 M^-1 s^-1. If the initial concentration of reactant is 0.25 mol/L, it takes __________ s for the concentration to decrease to 0.20 mol/L. A) 1.4 B) 0.20 C) 1.0 D) 2.1 E) 0.47 Given the following rate law, how does the rate of reaction change if the concentration of Y
Sixta KovacekLv2
5 Jun 2019