The reaction 4al (s) 3o2 (
2 answers:
<u>Answer:</u> The reaction is exothermic and therefore the heat is released by the reaction.
<u>Explanation:</u>
There are 2 types of reaction based on the heat of the reaction:
- Exothermic reactions are defined as the reactions in which energy is released in the form of heat. The enthalpy change
of the reaction comes out to be negative for this kind of reaction.
- Endothermic reactions are defined as the reactions in which energy is absorbed in the form of heat. The enthalpy change
For the given chemical reaction:
As, the enthalpy change of the reaction is negative. The reaction is considered as an exothermic reaction.
Hence, the reaction is exothermic and therefore the heat is released by the reaction.
You might be interested in
Answer:
Explanation:
(a) Part 1: reaction. This is a nucleophilic substitution reaction in which we have two steps. Firstly, chlorine, a good leaving group, leaves the carbon skeleton to form a relatively stable secondary carbocation. This carbocation is then attacked by the hydroxide anion, our nucleophile, to form the final product.
To summarize, this mechanism takes places in two separate steps. The mechanism is attached below.
Part 2: reaction. This is a nucleophilic substitution reaction in which we have one step. Our nucleophile, hydroxide, attacks the carbon and then chlorine leaves simultaneously without an intermediate carbocation being formed.
The mechanism is attached as well.
(b) The rate determining step is the slow step. Formation of the carbocation has the greatest activation energy, so this is our rate determining step for . For
, we only have one step, so the rate determining step is the attack of the nucleophile and the loss of the leaving group.
