1. Which of the following could be used to monitor the rate of the reaction? (1
ID: 588508 • Letter: 1
Question
1. Which of the following could be used to monitor the rate of the reaction? (1 point) a. change in time/ change in concentration b. change in mass/ change in concentration c. change in concentration/ change in time d. change in concentration/ change in mass 2. Identify the INCORRECT statement below concerning chemical kinetics: (1 point) a. The rate of a chemical reaction changes with time b. The rate constant of a reaction generally depends on the concentrations of specles c. The rate of a chemical reaction is affected by the temperature of the reaction. d. The rate law of a chemical reaction bears no relationship with the balancing coefficients of the overall reaction. e. The rate law expresses how the rate varies with concentration of species. 3. Of the following factors, which cannot affect the rate of a chemical reaction? (0.5 point) a, all can affect the rate b. temperature c. presence of a catalyst d. concentration of reactants of the forward reactio 4. The relationship between the rate constant and temperature is expressed by the: (0.5 point) a. Arrhenius equation b. Rate law c. Integrated rate equations d. Reaction mechanism 5. Fox the following rate, if the [A] is doubled and the [B] is quadrupled what would the overall rate be if x and y are 1 rate=k[A]"[B]y a. The rate would be increased 1/8 times of the original b. The rate would be increased 8 times of the original. c. The rate would not changeExplanation / Answer
1)
Rate is defined as:
rate = change in concentration / change in time
Answer: c
2)
rate constant of reaction depends on temperature and activation energy but not on the concentration of reaction
So, b is incorrect
Answer: b
3)
All of the options effect the rate of reaction
Answer: a
4)
K = A*e^(-Ea/RT)
this is the expression is talking about
This is called Arrhenius equation
Answer: a
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