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Homework Problem 8.3 Using Proper Units

Posted: Sun Jan 14, 2018 1:08 pm
by Ardo 2K
For problem 8.3 when finding the change in the volume of the bicycle pump in order to find the work, the solutions manual found it in liters, but in the book it states that when finding work we should only work in Pascals for pressure and meters cubed for volume. It makes the conversion for Pascals but not to meters cubed, so is it fine to keep the change in volume in liters?
Thank you

Re: Homework Problem 8.3 Using Proper Units

Posted: Sun Jan 14, 2018 2:36 pm
by Danah Albaaj 1I
The problem provides you with the volume in centimeters cubed and the pressure in atm. In this case it is best if you convert the volume to liters in order to perform the conversions for joules. If the pressure had already been in pascals, then having the volume be in liters would have been unnecessary.