Gold is reacted with Bromine gas according to the reaction 2Au + 3Br2 → 2AuBr3 . Use the data table below to determine the perce
1 answer:
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Explanation:
A property which does not bring any change in chemical composition of a substance is known as physical property.
For example, blood is more viscous than water, its pH is slightly alkaline, its temperature is about (
) .
On the other hand, a property which changes chemical composition of a substance is known as a chemical property.
For example, precipitation, reactivity, toxicity etc are chemical property.
Sometimes, the change in color of a substance can also occur due to a chemical change.
Thus, we can conclude that following are the physical characteristics of blood.
- it is more viscous than water.
- its temperature is about
(
).
- the pH is slightly alkaline.
- it is about 8% of one’s total body weight.
Answer : The rate law for the overall reaction is,
Explanation :
Rate law : It 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.
As we are given the mechanism for the reaction :
Step 1 : (slow)
Step 2 : (fast)
Overall reaction :
The rate law expression for overall reaction should be in terms of .
As we know that the slow step is the rate determining step. So,
The slow step reaction is,
The expression of rate law for this reaction will be,
Hence, the rate law for the overall reaction is,