Unit 4 Kinetics DH
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What is the definition of the rate of reaction?
The change in concentration (of any of the reactants or products) with unit time
What is ‘The constant of the proportionality in the rate expression’ the definition for?
The rate constant
What is the slowest step in the reaction mechanism?
The rate determining step
How would you write the rate equation for 2A+B—–>2C+D?
rate=k[A]^2[B] ————– [C]^2[D]
What effect will a catalyst have on the rate constant?
None
If you increased the temperature of an endothermic reaction, what effect will it have on the rate constant?
The rate constant will increase
What does [HCOOH] mean?
The concentration of methanoic acid
What kind of reaction takes in energy from its surroundings?
An exothermic reaction