the order of the reaction for which the units of rate constant are mol dm-3 s-1
Answers
Answer:
Read mol dm-3 s-1 as "moles per cubic decimetre (or litre) per second". This means that every second the concentration of A was falling by 0.0040 moles per cubic decimetre. This rate will decrease during the reaction as A gets used up.
Explanation:
this is your answer
Concept:
The dependence of each reactant concentration in a chemical reaction on the rate law expression is known as the order of the reaction. For example, the concentration of one component in a first-order chemical reaction determines the rate of the reaction completely. The sum of the powers of the reactant concentrations in the rate law expression can be used to describe the order of a chemical reaction
Given:
The units of the rate constant are mol dm⁻³ s⁻¹.
Find:
Find the order of the reaction for which the units of the rate constant are mol dm⁻³ s⁻¹.
Solution:
Depending on the concentration of the reactants, reactions can be first order, second order, pseudo first order, etc. An experimental value is the order of the reaction. It signifies the parameter was established by the experiment. It may also have a fractional value.
The general expression for the order of the reaction is given as the rate of reaction is proportional to the concentration of reactant A. It is given as:
Order of the reaction = k[A]
The concentration can be expressed as mol dm⁻³ and time can be expressed in seconds.
Thus, the order of the reaction for which the units of the rate constant are mol dm⁻³ s⁻¹ is zero order.
Hence, the correct answer is the zero order.
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