Question

How is the pressure of a gas related to its concentration of particles?A) Pressure will expand a gas, enlarging its volume and reducing its density and concentration of particles. B) Pressure will magnify a gas, developing its volume and multiplying its density and concentration of particles. C) Pressure will compress a gas, reducing its volume and giving it a greater density and concentration of particles. Eliminate D) Pressure will accelerate a gas, extending its volume and allowing a smaller density and concentration of particles.

Answer 1

Answer:

C) Pressure will compress a gas, reducing its volume and giving it a greater density and concentration of particles.

Explanation:

At constant temperature, pressure and volume are inversely related.

P V = constant

$\Rightarrow P \propto \frac{1}{V}$

As the pressure increases, the gas compresses, the particles come closer reducing the volume of gas.

As we know, with decrease in volume, density increases.

$Density = \frac{Mass}{Volume}$

$Density \propto \frac{1}{Volume}$

Thus, the pressure of a gas is directly related to concentration of particles. Increase in pressure causes increase in concentration of the particles.