A reproducible measurement is an accurate one. A. True B. False
2 answers:
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Answer : The unit for the rate constant in the rate law for the formation of ammonia is,
Explanation :
Rate law is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.
For the given chemical equation:
Rate law expression for the reaction:
where,
a = order with respect to
b = order with respect to
Expression for rate law for first observation:
....(1)
Expression for rate law for second observation:
....(2)
Expression for rate law for third observation:
....(3)
Dividing 2 by 1, we get:
Dividing 3 by 1 and also put value of b, we get:
Thus, the rate law becomes:
Now, calculating the value of 'k' by using any expression.
The value of the rate constant 'k' for this reaction is
That means, the unit for the rate constant in the rate law for the formation of ammonia is,
Answer:
The equilibrium law
Explanation:
According to the equilibrium law , when of any of the reactants or the products in the reaction at an equilibrium state, is changed, then it changes the composition of equilibrium mixture in order to minimize the effect of
Acetic acid (in excess) + ⇄
+ water
is a reaction which involves the equilibrium. So to force the reaction towards the side of
, one of the reactant is taken in excess. All this can be explained easily by applying the equilibrium law.