Question

According to Avogadro's law, which quantities are kept constant for a gas?

• A. Volume
• B. Temperature
• C. Pressure
• D. (b) and (c) above.

Answer 1

The correct option is D (b) and (c) above.

Avogadro's law states that at constant pressure and temperature, the volume of a gas $\left(\text{V}\right)$ is directly proportional to number of atoms or molecules present in it $\left(\text{n}\right)$.
$\text{V}\propto \text{n}$

$\frac{\text{V}}{\text{n}}=$ constant