Question

Which statement about the relationship between density and particle attraction is true? A. The density of a substance has no effect on the attraction among its particles. B. As the density of a substance increases, the attraction among its particles increases. C. As the density of a substance increases, the attraction among its particles decreases. D. As the density of a substance decreases, the attraction among its particles increases.

Answer 1

Answer: As the density of a substance increases, the attraction among its particles increases.

Explanation:

Density of the substance is defined as mass present in per unit volume of the substance.

`Density=(Mass)/(Volume)`

From the above expression , we can say that density varies inversely with the volume of the substance.

`Density\propto (1)/(Volume)`

Decrease in volume means particles are coming closer that is attraction between particles is getting increased by which they will now occupy less volume. And with decrease in volume the density of the substance will get increase.

Hence, the correct answer is option (B)