## finding W

Peter Nguyen 2I
Posts: 61
Joined: Fri Sep 28, 2018 12:29 am

### finding W

Is the integral formula equivalent to -P(V2-V1)? can you use both to find -P delta V?

Michelle Wang 4I
Posts: 63
Joined: Fri Sep 28, 2018 12:27 am

### Re: finding W

Yes they are the same and I think you can use both interchangeably.

Diviya Khullar 1G
Posts: 59
Joined: Fri Sep 28, 2018 12:19 am

### Re: finding W

Yes -P(V2-V1 is what you get when you solve $-P\int_{V1}^{V2}dv$

Eric Quach 1C
Posts: 30
Joined: Fri Sep 28, 2018 12:20 am

### Re: finding W

Yep the formulas give the same answer. I think Dr.Lavelle was just using the integral to show how the P delta V formula was derived.

Kavvya Gupta 1H
Posts: 35
Joined: Fri Sep 28, 2018 12:21 am

### Re: finding W

the two equations mean the same thing just written in different ways

George Ghaly 2L
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Joined: Fri Sep 28, 2018 12:29 am
Been upvoted: 1 time

### Re: finding W

Yes, the integral just implies that a very small volume is being changed at every instant therefore it all can be summed up with an integral, while if the change of volume is large and sudden ten delta v can just be used.

Christopher Anisi 2K
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

### Re: finding W

The equations are the same, Dr. Lavelle wanted to utilize the integral to derive where P (delta V) came from showing that the sum of a small change in volume is equivalent to the integral.

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