A _____ activation energy is required to break the double bonds of unsaturated hydrocarbons.
2 answers:
<u>Answer:</u> High activation energy is required.
<u>Explanation:</u>
Unsaturated hydrocarbons are defined as the hydrocarbons in which double or triple bonds are present between two adjacent carbon atoms. They are known as alkenes and alkynes respectively. The general formula for these hydrocarbons is and
In unsaturated hydrocarbons, more number of bonds are formed, thus the bond strength of the bonds formed will be more because the orbitals come closer to each other.
As, bond strength of unsaturated hydrocarbons are more. So, more energy will be required to break the bond between them.
Hence, high activation energy is required.
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Answer: c. The rate of the forward reaction will increase.
Explanation:
Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.
This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.
For the given equation:
This is a type of Endothermic reaction because heat is absorbed in the reaction.
When the temperature is increased, according to the Le-Chatlier's principle, the equilibrium will shift in the direction where decrease in temperature occurs. As, this is an endothermic reaction, forward reaction will decrease the temperature. Hence, the equilibrium will shift in the right or forward direction.