Turn on thread page Beta
    • Thread Starter
    Offline

    13
    ReputationRep:
    guys can someone pls help me with part b of this question
    the choices were
    A
    B
    C
    D respectively
    rate against conc graph for sec order is supposed to be a postitive curve (which doesnt exist as one of the graphs) but the answer is graph B!! is this becase it said rate against conc squared??? what does that mean
    Attached Images
     
    Offline

    13
    ReputationRep:
    so essentially what i think is going is that on a normal rate of reaction against conc graph for second order we would see the positive curve, since rate = k(reactant)^2 therefore by having conc^2 as the x axis, the second order graph will be directly proportional i.e a straight line as the rate of reaction is proportional to the concentration of that reactant squared.
    Offline

    13
    ReputationRep:
    (Original post by smartguy32)
    so essentially what i think is going is that on a normal rate of reaction against conc graph for second order we would see the positive curve, since rate = k(reactant)^2 therefore by having conc^2 as the x axis, the second order graph will be directly proportional i.e a straight line as the rate of reaction is proportional to the concentration of that reactant squared.
    So this graph shows that the rate of reaction is directly proportional to the concentration squared which is second order.
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by smartguy32)
    So this graph shows that the rate of reaction is directly proportional to the concentration squared which is second order.
    thank you very much
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: November 1, 2016
The home of Results and Clearing

4,841

people online now

1,567,000

students helped last year

University open days

  1. Bournemouth University
    Clearing Open Day Undergraduate
    Fri, 17 Aug '18
  2. University of Bolton
    Undergraduate Open Day Undergraduate
    Fri, 17 Aug '18
  3. Bishop Grosseteste University
    All Courses Undergraduate
    Fri, 17 Aug '18
Poll
A-level students - how do you feel about your results?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.