Question

given reason for the following observation: naphthalene balls disappear with time without leaving any solid. we can get the smell of perfume sitting several metres away

Answer 1

Hey.. buddy due to diffusion

Answer 2

Hey mate...here is ur ans...✌❤❤

✔1. Napthalene balls disappear with time without leaving behind any residue bcoz they follow a process known as sublimation. Sublimation is a state when solid changes directly to gas and vice versa. And napthalene balls disappear from solid to gas bcoz of sublimation.

✔2. We can get the smell of perfume sitting several metres away bcoz of diffusion. Diffusion is the state where paticles from high concentration travels to lower concentration. As gases have more intermolecular spaces by which the smell of perfume interact with them and travel from one place to another.

Hope it helps u...thanks..✌❤❤