2006-11-01 01:01:54 · 3 answers · asked by Richard M 1 in Science & Mathematics ➔ Chemistry
Within reason, say 10deg to 99deg, there's no difference in the chemical reaction, just in the SPEED of reaction. Fundamentally, what's happening when you put an Alka Seltzer tablet in water is: acetyl salicylic acid + sodium bicarbonate -> sodium acetyl salicylate + carbon dioxide + water. The reaction progresses more rapidly in warm water than cold water, so you see more CO2 bubbles and the tablet dissolves more quickly.
By the way, sodium acetyl salicylate is soluble in water, but as soon as it hits the HCl in your stomach, it reverts to insoluble aspirin.
2006-11-01 01:53:01 · answer #1 · answered by JJ 7 · 0⤊ 0⤋
The factors which effect rate of reaction are 1. concentration 2.size of particles(small react faster) and 3. temperature.
As temperature increases, the rate of reaction goes up.
This may have a top end if heat decomposes the materials.
2006-11-01 12:09:30 · answer #2 · answered by science teacher 7 · 0⤊ 0⤋
I think that the higher the temprature is, the faster it reacts
2006-11-01 09:49:07 · answer #3 · answered by James Chan 4 · 0⤊ 0⤋