Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) ?

Question

Accepted Answer

m/ρ . Vp. The number of particles is the total mass (m) divided by the mass of one particle (which is Vp * ρ). This simplifies to m / (Vp * ρ), but given the options, A represents m/ρ multiplied by Vp, which seems dimensionally incorrect based on standard formulas. Assuming the formula intended was Number = Total Volume / Particle Volume or Mass / Particle Mass.