1. Hay un gas con 700 milímetros de Mercurio de presión en 922 ml de volumen a 20 grados Celsius. Calcula la temperatura final a
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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,