2006-12-03 21:21:50 · 10 answers · asked by Aries Jordan E 1 in Science & Mathematics ➔ Chemistry
Reaction is gained at the mixing if the proportion is rapidly increased there is a much faster reaction. Water volume is incresed slowly with adding the acid. Acid volume is increaed too fast by adding water to the acid
2006-12-03 21:40:17 · answer #1 · answered by burning brightly 7 · 1⤊ 0⤋
mixing water with acid creates heat from the reaction. If you add the acid to the water it is dispersing into the water and the heat is spread out. If you add the water into the acid the heat of the reaction is concentrated on the water and it can boil and spit. This means acid splashing and possible burns or poisoning from the acid.
2006-12-03 21:40:26 · answer #2 · answered by Barabas 5 · 0⤊ 0⤋
In the dilution of any concentrated acids, especially diluting conc sulphuric acid, a great amount of heat is generated. The temperature sometimes reaches 100 deg. C.
If you add water to a large amount of conc acid, the water added immediately vapourises (or boils) and splashes on the handler.
If you drip conc acid to a large amount of water, the heat of dilution evolved, can be easily absorbed by the water and the vapourising of water and the splashing will be kept to a minimum.
Always use a glass rod to drip the conc acid into a large amount of water. Wear protective lab coat, gloves and goggles.
2006-12-04 01:08:56 · answer #3 · answered by pete 2 · 1⤊ 0⤋
this particularly valid for sulphuric acid.. Sulphuric acid explodes if water is added to it. Large quantity heat is produced when water and sulphuric acid are mixed. Even when sulphuric acid is added to water , it should added slowly with goo stirring.
2006-12-03 23:33:10 · answer #4 · answered by Bal 1 · 1⤊ 0⤋
this is highly exothermic reaction water and acid reacts and produce more heat, thats why we add acid alsways added to water reverse very dangers,
2006-12-03 23:53:20 · answer #5 · answered by lewis 1 · 0⤊ 0⤋
water may splash the acid out on YOU!
and it hurts - have to flush quickly - that's why the shower is there in the Chemistry Lab
2006-12-03 21:24:44 · answer #6 · answered by tom4bucs 7 · 1⤊ 0⤋
water is ligher than acid. if you try adding water to acid, the hot vapors will splash on you. if u add acid to water slowly, there's no splash.
2006-12-03 21:26:58 · answer #7 · answered by ravish2006 6 · 0⤊ 1⤋
it depends on what u r tryin to do, u cant reli neutralise acid with water because water is pH7, but i cant see y u wud want to add acid to water?
2006-12-03 21:27:37 · answer #8 · answered by lost_cyclist 1 · 0⤊ 2⤋
simply to avoid explosive reaction.
2006-12-03 21:30:57 · answer #9 · answered by Anonymous · 1⤊ 0⤋
because of the reaction
2006-12-03 21:27:15 · answer #10 · answered by Anonymous · 0⤊ 1⤋