Instantaneous vs Average

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TiffanyL1G
Posts: 61
Joined: Fri Sep 28, 2018 12:22 am

Instantaneous vs Average

Postby TiffanyL1G » Wed Mar 06, 2019 9:33 pm

What is the difference between instantaneous rate and average rate?

Jennifer Lathrop 1F
Posts: 71
Joined: Sat Dec 02, 2017 3:00 am

Re: Instantaneous vs Average

Postby Jennifer Lathrop 1F » Wed Mar 06, 2019 9:38 pm

average, in terms of reaction rates, is the change in molar concentration during an interval divided by that time interval. Instantaneous is pretty much the same thing but regarding a specific point of interest. So instead of a rate over a period of time, instantaneous is like a snapshot of what the rate is at an instant in time I believe.

Julia Lung 1I
Posts: 30
Joined: Fri Jun 23, 2017 11:39 am

Re: Instantaneous vs Average

Postby Julia Lung 1I » Wed Mar 06, 2019 9:41 pm

average rate is when you take the change over time while instantaneous is usually when time is approaching zero and you take the derivative

Niveda_B_3I
Posts: 60
Joined: Fri Sep 28, 2018 12:24 am

Re: Instantaneous vs Average

Postby Niveda_B_3I » Thu Mar 07, 2019 9:39 am

Instantaneous change would imply a derivative, because you're finding the changing at a certain time t, versus average would be you finding the change over a period of time, from t1 to t2.

Courtney Quan 1C
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am
Been upvoted: 2 times

Re: Instantaneous vs Average

Postby Courtney Quan 1C » Thu Mar 07, 2019 11:13 am

An average rate is taken over an interval of time. An instantaneous rate is taken at one specific instance/moment in time.

Calvin Patel 2H
Posts: 37
Joined: Fri Sep 28, 2018 12:22 am

Re: Instantaneous vs Average

Postby Calvin Patel 2H » Thu Mar 07, 2019 11:30 am

The average rate is the rate over a given interval of time. Instantaneous rate is the rate at a given moment in time

ran2000
Posts: 66
Joined: Fri Sep 28, 2018 12:15 am

Re: Instantaneous vs Average

Postby ran2000 » Sat Mar 09, 2019 7:15 pm

Instantaneous rate is the rate of the reaction at a particular time.
Average rate is the rate of the reaction over the time taken to the reaction's completion

Fionna Shue 4L
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

Re: Instantaneous vs Average

Postby Fionna Shue 4L » Sun Mar 10, 2019 8:49 pm

Average rate is the change in the value of a quantity divided by the elapsed time. The instantaneous rate on the other and is the rate of a change at an exact moment in time.

Hilda Sauceda 3C
Posts: 76
Joined: Fri Sep 28, 2018 12:24 am

Re: Instantaneous vs Average

Postby Hilda Sauceda 3C » Sun Mar 10, 2019 8:50 pm

Average rate is the change over time while the instantaneous rate is the rate at a specific moment found when taking the derivative.

704913468
Posts: 17
Joined: Wed Nov 15, 2017 3:02 am

Re: Instantaneous vs Average

Postby 704913468 » Sun Mar 10, 2019 9:03 pm

Average Rate of change is the rate over a period of time. Instantaneous rate of change is the rate at a specific time t.

lizettelopez1F
Posts: 29
Joined: Fri Sep 28, 2018 12:19 am

Re: Instantaneous vs Average

Postby lizettelopez1F » Sun Mar 10, 2019 10:30 pm

What's the formula for instantaneous rate and average rate?

madisondesilva1c
Posts: 91
Joined: Fri Sep 28, 2018 12:16 am

Re: Instantaneous vs Average

Postby madisondesilva1c » Sun Mar 10, 2019 10:37 pm

The average rate can be found by looking at change in concentration over change in time, and can describe the general change in rate. While instantaneous change can be found by solving for the derivative as time approaches zero. This will be the rate change at a specific time.


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