2006-12-29 02:05:38 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
By raising temperature the constant of sodium hydrogen carbonate become more and react more with acid (HCl). Also this reaction produces heat and with lower temperature the rate become faster, but not react as complete as first stat. (in first stat I mention thermodynamically and then kinetically.)
2006-12-29 03:55:15 · answer #1 · answered by Ash 2 · 0⤊ 1⤋
Le Chateliers principle says nothing about the rate of reaction, only about the shift in equilibrium position with changes to the environment, this is a common error.
NaHCO3 +HCl → NaCl + CO2 +H2O
Under normal laboratory conditions this is NOT a reversible reaction as the carbon dioxide will bubble away and escape into the air, removing it from the system. So, the reaction will proceed to completion ending when either of the reactants is used up.
As the reaction is irreversible Le Chatelier's principle does not apply, there is no equilibrium to 'shift the position of'.
Temperature does affect the reacction however. Basic collision theory states that a reaction proceeds more quickly when more reactant particles collide with 'sufficient energy'. (Particle collisions need to overcome an 'activation energy' barrier).
By raising the temperature, in general, the reactive particles in solution will move mopre quickly, more collisions will happen between the reactant particles and more of the collisions will have sufficient energy for the collision to be 'productive'.
In short, raising the temperatute will increase the rate of reaction, decreasing the temperature will decrease the rate of reaction.
2006-12-29 04:07:46 · answer #2 · answered by Dr Bob UK 3 · 0⤊ 1⤋
Since the reaction
NaHCO3 + HCl = NaCl + H2O + CO2
is exothermic i.e. heat is liberated.
By applying Le Chateliers principle...if we lower the temperature of the system ...the reaction occurs at a faster rate.
But if its lowered too much..then it becomes too sluggish.
2006-12-29 02:43:13 · answer #3 · answered by Som™ 6 · 0⤊ 1⤋
i agree with the Dr, i didnt think that Le Chatelier applied to this reaction, because thats to do with eqilibrium reactions. I would say that the reaction would speed up as there are now more successful collisions occuring.
2007-01-01 03:00:20 · answer #4 · answered by coy carp 3 · 0⤊ 0⤋
I don't think this equation is valid, are you sure that's right? I think it's impossible.
2016-03-28 23:37:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋