instantaneous rate

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Rhea Shah 2F
Posts: 97
Joined: Thu Jul 25, 2019 12:17 am

instantaneous rate

Postby Rhea Shah 2F » Sun Mar 01, 2020 11:02 pm

Why do we use the instantaneous rate instead of the average rate?

Zoya Mulji 1K
Posts: 105
Joined: Thu Jul 11, 2019 12:15 am

Re: instantaneous rate

Postby Zoya Mulji 1K » Sun Mar 01, 2020 11:03 pm

because it is more accurate since you can get the rate of a reaction at a certain time by taking the slope of a tangent line

J_CHEN 4I
Posts: 54
Joined: Tue Nov 14, 2017 3:01 am

Re: instantaneous rate

Postby J_CHEN 4I » Sun Mar 01, 2020 11:04 pm

The instantaneous rate is for finding the entire area under the curve, while the average rate gives an approximation.

lauraxie2e
Posts: 108
Joined: Fri Aug 09, 2019 12:17 am

Re: instantaneous rate

Postby lauraxie2e » Sun Mar 01, 2020 11:06 pm

it is more precise because it isn't an average

Justin Quan 4I
Posts: 104
Joined: Sat Sep 14, 2019 12:17 am

Re: instantaneous rate

Postby Justin Quan 4I » Mon Mar 02, 2020 1:20 pm

Since the instantaneous rate of change is the rate of change at a particular point or instant in time. This is better than average rate of change because an instantaneous rate will give you the rate of the reaction at that exact instant in the reaction.

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

Re: instantaneous rate

Postby 805097738 » Mon Mar 02, 2020 4:43 pm

Because it gives the exact slope at a specific time rather than an average of slopes over a range of t values

anjali41
Posts: 109
Joined: Fri Aug 09, 2019 12:15 am

Re: instantaneous rate

Postby anjali41 » Mon Mar 02, 2020 5:36 pm

The instantaneous rate is used because it refers to the rate at one specific time. In contrast, the average rate occurs over a longer time period, so it is not as precise.

Jack Riley 4f
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

Re: instantaneous rate

Postby Jack Riley 4f » Mon Mar 02, 2020 6:07 pm

It is more precise for that specific moment in time

Shail Avasthi 2C
Posts: 101
Joined: Fri Aug 30, 2019 12:17 am

Re: instantaneous rate

Postby Shail Avasthi 2C » Thu Mar 05, 2020 8:10 pm

Since reaction and product concentrations follow smooth curves that are defined by equations, we can easily use the instantaneous rate of change, which will give us a more accurate result than using an average. It also allows us to turn the differential rate laws into the integrated rate laws.

HuyHa_2H
Posts: 100
Joined: Wed Sep 11, 2019 12:15 am

Re: instantaneous rate

Postby HuyHa_2H » Sun Mar 08, 2020 1:10 am

The instantaneous rate applies to a specific point in time which is more useful than an average rate as the graph may not be as consistently simple in which the average rate can be very different as to what the actual rate is.

aishwarya_atmakuri
Posts: 101
Joined: Sat Jul 20, 2019 12:15 am

Re: instantaneous rate

Postby aishwarya_atmakuri » Sun Mar 08, 2020 3:26 am

Instantaneous rate is more accurate for a specific time, while average gives you the overall rate of the reaction.

Osvaldo SanchezF -1H
Posts: 122
Joined: Wed Sep 18, 2019 12:21 am

Re: instantaneous rate

Postby Osvaldo SanchezF -1H » Sun Mar 08, 2020 3:29 am

You would take the instantaneous rate over the average rate because it is more accurate since it is the rate at one specific time instead of that at an interval which would lead to a greater margin of error.

Rebekah Alfred 1J
Posts: 102
Joined: Thu Jul 11, 2019 12:15 am
Been upvoted: 1 time

Re: instantaneous rate

Postby Rebekah Alfred 1J » Sun Mar 08, 2020 9:33 am

With average rate, there is a larger error because you are treating the curve as a line when taking two points into consideration. However, with instantaneous rate, you are using only one point to get the slope, which results in a more accurate slope.

Caroline Zepecki
Posts: 101
Joined: Fri Aug 09, 2019 12:16 am

Re: instantaneous rate

Postby Caroline Zepecki » Sun Mar 08, 2020 10:30 am

Instantaneous rate breaks up into infinite intervals, whereas average relies only on the data points you're given so it's far less accurate.

Jasmine W 1K
Posts: 49
Joined: Sat Sep 07, 2019 12:18 am

Re: instantaneous rate

Postby Jasmine W 1K » Sun Mar 08, 2020 4:56 pm

The instantaneous rate is more precise because it isn't an average.

Lauren Stack 1C
Posts: 100
Joined: Sat Aug 17, 2019 12:18 am

Re: instantaneous rate

Postby Lauren Stack 1C » Sun Mar 08, 2020 5:30 pm

An instantaneous rate provides an infinite amount of time points that you can measure the rate. It is more accurate than taking the average between two points because you are looking at the exact rate in time, rather than an approximation between two points where the rate in between the two points can be non-constant.

805329408
Posts: 49
Joined: Wed Nov 20, 2019 12:21 am

Re: instantaneous rate

Postby 805329408 » Sun Mar 08, 2020 5:32 pm

Since the graph is a curve, taking the average rate will treat the graph as a line instead and not account for the curve which an instantaneous rate does.


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