Question

To use Boyle's Law, which of the following needs to remain constant?

• A. Temperature and number of moles of a gas
• B. Temperature and pressure
• C. Pressure and number of moles of a gas
• D. Pressure and volume
• E. Temperature and volume

Answer 1

The correct option is A Temperature and number of moles of a gas

(A): Temperature and number of moles of gas.
The absolute pressure exerted by a given mass of an ideal gas is inversely proportional to the volume it occupies if the temperature and amount of gas remain unchanged within a closed system
Mathematically, Boyle's law can be stated as:
$P\alpha \frac{1}{V}$ , at constant temperature and number of moles of gas.