Boyle's Law for Enclosed Gases States That at a Constant

Multiple Choice

Boyle's law for enclosed gases states that at a constant temperature, the pressure is related to the volume by the equation , where k is a constant. If the volume is increasing at a rate of 7 cubic inches per hour, at what rate is the pressure changing when the volume is 40 cubic inches and inch-pounds? Round your answer to three decimal places.

A) 1.750 lb/in²/hr
B) -0.001 lb/in²/hr
C) -70.000 lb/in²/hr
D) 0.009 lb/in²/hr
E) -0.009 lb/in²/hr