To prevent di-nitration of the methy benzoate because COOMe group attached to the aromatic ring is deacitvating, hence, plus the deactivating NO2 group, a higher temperature and more acidic condition would be required to add another NO2 to the 5th carbon of the aromatic ring of the methyl 3-nitrobenzoate
If the temperature rises to high you will produce a dinitrated product.
Prevents production of a dinitrated product.
At a low temperature, which of these factors favors a forward reaction
in the sence of chemistry many reaction occured at the low temperature....dis is main advantage of low temprature
A catalyst reduces the amount of energy required to produce the reaction. This speeds up the reaction and causes it to finish more quickly. Raising the temperature will also speed up a reaction.
Because catalyst will reduce the activation energy of the reaction, thereby the speed of the reaction increases.
if H and S are both negative
In most of the nitration processes heat is require but relatively (as compare to sulphonation) low temperature is due to volatile nature of nitrating agent which is usually nitric acid, at higher temperature nitric acid may decompose or may escape from the reaction vessel.
At a low temperature, which of these factors favors a forward reaction
temperature keep low the temperature of the refrigerator
in the sence of chemistry many reaction occured at the low temperature....dis is main advantage of low temprature
in the sence of chemistry many reaction occured at the low temperature....dis is main advantage of low temprature
A catalyst reduces the amount of energy required to produce the reaction. This speeds up the reaction and causes it to finish more quickly. Raising the temperature will also speed up a reaction.
This reaction is possible also at low temperature.
When H and S are both positive
Because catalyst will reduce the activation energy of the reaction, thereby the speed of the reaction increases.
if H and S are both negative
If H and S are both negative
Because if the temperature is increased, the equilibrium position moves in the direction of the endothermic reaction. and if the temperature is low the reaction would be slow.