This question has several parts that must be completed sequentially. if you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. tutorial exercise boyle's law states that when a sample of gas is compressed at a constant temperature, the pressure p and volume v satisfy the equation pv = c, where c is a constant. suppose that at a certain instant the volume is 900 cm3, the pressure is 150 kpa, and the pressure is increasing at a rate of 40 kpa/min. at what rate is the volume decreasing at this instant? differentiating both sides of pv = c with respect to t gives us