Explanation:
21. The given molecule for cracking is tetradecane.
On cracking it forms one mole of decane (C10H22) and two moles of ethene gas.
The chemical equation is shown below:
22. The essential condition for the formation of an ester is the reaction of alcohol and acid in presence of concentrated sulfuric acid.
Thus among the given options, the first option is the correct one.
23. Isomers of butanol are shown below:
It is 2-butanol.
The position of -OH group changes to the second carbon.
Answer: Rate of reaction is an "extensive property". Rate of generation of a chemical species is an "intensive property"
Explanation:
Temperature, Physical state of the reagents, Presence of a catalyst, Pressure, light, Concentration of the reagents.
When having a general chemical reaction like this:
aA + bB → cC + dD
Usually the rate of reaction is represented by the next equation
Where k= constant
x, y = reactant orders
A, B = reactant concentration
As we can see in the last equation, the rate of reaction <u>depends directly of the amount of material present</u> in a sample, that is why it is an "extensive property"