Question

A certain mass of a gas occupies a volume of \(2.5\ \text{dm}^3\) at NTP. Calculate the change in volume of gas at the same temperature, if pressure of gas is changed to \(1.25\ \text{atm}\).

• A. \(3.0\ \text{dm}^3\)
• B. \(0.5\ \text{dm}^3\)
• C. \(4.5\ \text{dm}^3\)
• D. \(1.5\ \text{dm}^3\)

Hint:

At constant temperature: \[ P\propto \frac1V \] So, if pressure increases, volume decreases and vice versa.

Answer 1

The Correct Option is B