if the equilibrium constant is high does that mean that the reaction is faster?
155966
yeah, it means the reaction reaches equilibrium faster
618961
6 moles of hydrochloric acid will react at a faster rate than 1 mole of hydrochloric acid because the solution will not dilute as fast as the smaller amount of acid- more acid to react with the Zinc.\n\nSounds good to me...
1125729
The index-of-reaction equation (i.r.e.): dF/dtZ = kZ(l - βF)m is compared with a generalized Prout-Tompkins equation (g.P.T.e.): dF/dt = kn(l - βF)y With the boundary condition F = 0, t = 0 the equations are equivalent for z = 2 or m = 0 or β ≤ 1 and the i.r.e, is closely approximated by the g.P.T.e. for other values of the parameters by use of the following approximation ∫(1- F)-m dF ≈ AF(1-BF)5 The parameter s is a function of m. Both A and B are close to unity for 1/3 < m < 3. The i.r.e. is recommended as being more useful than the g.P.T.e. because the i.r.e. has a better theoretical basis and because it is more readily integrated and fitted to experimental data.
975754
I'm not sure if "catalyzes" is the right word, but what you're doing by adding iodide (as KI or NaI) to the reaction mixture is adding another nucleophile to the mix.  This would then speed up the SN2 reaction of your starting material.  You would probably run the risk of iodide becoming another (competing) nucleophile.  Since you don't specify what the initial nucleophile actually IS, this may or may not be a bother to you; the gyst of your question was whether the reaction would speed up.  It probably will, because\n\nrate of SN2 rxn = k [substrate][nucleophile]\n\nAdding I- is like adding more nucleophile, unless of course  your existing nucleophile is more reactive towards the substrate than iodide is.  And as the relation above says...more nucleophile means a faster reaction.  The question is, what's your product?\nIs it the desired one?  or do you care?  (are you content with just seeing the reaction speed up....)\n\nBest I can do with what you gave me.
909068
Collision theory predicts that rate of reaction will increase with increasing reactant concentration, because the higher the concentration the greater the number of particles and hence the greater number of collisions. If there are MORE collisions then the number (NOT the proportion) of successful collisions will also increase, therefore rate will increase.\nSo if you're plotting reaction rate vs acid concentration your graph will have a positive gradient and each incremental increase in concentration will have the same effect on the rate of reaction.
786580
Yes...\n\nB will be faster for n < 10^-Ω, afterwards A will always be faster.
953209
Yes . but when the reaction begins, these temperatures will equilibrate\n\nIt is sometimes not possible to react if one compound is solid and the other is liquid
1187086
Higher temp = faster diffusion. Higher temps give the atoms more heat, which is basically a faster rate of the atoms vibrating. If they move around faster, they'll obviously diffuse farther in the same amount of time. Next time, do your own homework
566418
they are a protein that speed up chemical reactions.
1057769
I'm a teacher and i always give the students the "Rope example"\n\nimagine equilibrium as a rope pulled with the same force both ways! \n\nnow if you look at the your chemical reaction energy (heath) is release from the reaction -----> so if you take the heath out (so you cool the system) the reaction ------> will be more power full so equilibrium will be moved in C and D direction.\n\nIf you heath the system (you'll have a lot of heath that needs to go somehow --- and the only way it can go is by the <--------- reaction -- which is a reaction that use heath ).\n\nThe same with pressure (but you need to have different amounts of molecules -- in your reaction you have the same -- 5 in the reaction ----> and 5 in the reaction <----)\n\nif you speak about concentration use the rope example. You put more of A(increase the concentration of A) , that A need to be consumed in order to keep the equilibrium.\n\nif you take A out of system (so reduce the concentration of A) you'll encourage the <---- reaction (reaction that release more A)\n\nI don't know if you'll understand my spelling and grammar (I'm not the aching chemistry in English). \nI'm just curious what grade are you on? because  I teach this subject to 10th grade students (16 years old )\n\nIf you want me to try to rephrase this answer just let me know \njustplaincornnel@yahoo.com
179057
It's not C.  An increase in pH makes a solution more alkaline, meaning less H+ in the fluids.\n\nI'm going to say A here because a rise in pH is associated with increased O2 binding to hemoglobin.
45274
many chemical reactions happen at the interface between different phases of solid, liquid, or gas.  the reaction rate is often limited by the surface area - so to increase the rate, you can increase the surface area. \n\n an example of this is in batteries - the ion-exchange process that batteries use happens at the surface of the electrode, where the solid metal electrode exchanges ions with the electrolyte solution.  lots of newer batteries use highly-porous materials for the electrode - all those little pores can increase the surface area by several orders of magnitude, allowing the reaction to run much faster.\n\nso, if you know how to drive it out of the rocks, then you're in good shape.  a simple answer to increase the rate is to crush the rocks into small grains.  this will allow for a much greater surface area, so water diffusing through the rock will make it to the surface sooner.\n\nalso, many reaction rates are sped up by increased temperature.  so you could build a fire and heat the rocks.  an increase in temperature means, on the molecular scale, that the atoms are moving faster - this means your reaction goes faster - and the water comes out faster.
185804
The relative differnce in gas concentrations.  Thus, if the concentrations are nearly equal, there is a slow rate.  This is true for nearly all rates, for example, if you have ice at 0C, and put it in a refrigerator at 4 C, it will take a long time for the ice (water) to become 4 C.  Thus, say 2 or 3 hours to just move 4 C.  But, if you take ice at 0 C and put it in a room thats 40 C, it'll warm 4 C within a few minutes.  The controlling element is the relative difference between the two levels.
177683
decrease\nthe greater the surface area of the reactant the more it is exposed to its other reactant, and more of it can react,  thus the reaction rate increases. This is the opposite for a decrease in the surface area.
906779
the ans should be C...because..if a gas that diffuses faster than KR...means tat the gas has a smaller molar mass than Kr...since is diffuse faster than 2.29 times..therefore the molar mass will be 83.8 / 2.29 = 36.6\n\n\n83.8 is Mr of Kr
679000
time= 2.303/(rate constant) log( initial conc / final conc)\n\nthis is for a first order reaction...
392823
No, it will merely lower the activation energy required by the reaction allowing it to proceed.  It won't actually make the reaction spontaneous.  Spontaneous implies that the reaction does not require any outside influence which would negate the need for a catalyst. ;-}