Question Part Submissions Used A very useful way of representing the equation of

Question

Question Part Submissions Used A very useful way of representing the equation of state of an ideal gas, PV = nRT, is to make graphs of the way two of the variables in the equation depend on each other while keeping the other two variables constant. For example, at constant number of moles, n, and constant absolute temperature, T, one can make a graph of P when the volume V occupied by the gas is changed. A few possible P vs. V graphs are shown below. Which one shows P vs. V with constant n and T? Click on the correct graph. On the graphs shown above, there is a point marked at (V0,P0). If P0 = 150 kPa, and V0 = 80 cm3, how much do you have to increase or decrease the volume from V0 (at constant n, T) if you want the final pressure to be 360 kPa?

Explanation / Answer

I am sure this is correct ,.. may be your prof has made a mistake in typing and might be seeking final volume (not the decrease) apply boyle's law p1 V1 = p2 v2 150*80 = 360 *v2 v2 = 33.33 so we have decrease volume by (80-33.33) = 46.6 cm^3

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