SOLUTION: The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. A measuring device is calibrated to give V=210 in^3 when T equals 280 degr

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Question 61625: The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. A measuring device is calibrated to give V=210 in^3 when T equals 280 degrees and P=20lb/in^2. What is the volume on this device when the temperature is 210 degrees and the pressure is 25lb/in^2.

Answer by Earlsdon(6103) About Me  (Show Source):
You can put this solution on YOUR website!
First, write the equation of proportionality:
V+=+kT%2FP Substitute the values given by the measuring device to solve for k, the proportionality constant.
210+=+k%28280%29%2F20 Solve for k.
k+=+20%28210%29%2F280
k+=+15
The proportionality equation is:
V+=+15T%2FP Substitute the given values of T = 210 and P = 25
V+=+15%28210%29%2F25
V+=+126Cu.ins.