Question

The relationship between pressure and the density of a gas expressed by Boyle’s law, P = KD holds true

• A. For any gas under any conditions
• B. For some gases under any conditions
• C. Only if the temperature is kept constant
• D. Only if the density is constant

Answer 1

Answer: (C)

Only if the temperature is kept constant

Answer 2

At constant temperature ; PV = constant

Ž $P \times \left( \frac{m}{D} \right)$= constant

Ž $\frac{P}{D}$= constant = K. [D = Density]