in an automobile engine, a piston will compress fuel vapors in a chamber before a spark plug ignites it…

in an automobile engine, a piston will compress fuel vapors in a chamber before a spark plug ignites it causing combustion. as the gas pressure builds up, the volume will be at a ______________ and the density will be at a ______________. a maximum; maximum b maximum; minimum c minimum; minimum d minimum; maximum
Answer
Brief Explanations:
According to Boyle's law, pressure and volume are inversely - related for a given amount of gas at constant temperature. As the piston compresses the fuel vapors, pressure builds up and volume decreases to a minimum. Density ($\rho=\frac{m}{V}$) is inversely proportional to volume. When volume is minimum, density is maximum.
Answer:
D. minimum; maximum