After heating a fixed volume of gas at 50 psia from 300° R to 600°R, its pressure will be:
A) 25 psia because the pressure and temperature vary inversely.
B) The final pressure cannot be determined without knowing the volume.
C) 50 psia because pressure and temperature are independent variables.
D) 100 psia because the pressure and temperature vary directly.
D
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Fill in the blank(s) with the appropriate word(s).