Why is it that when someone sprays perfume everybody in a room can smell it?
Why is it that when someone sprays perfume everybody in a room can smell it?
When you spray the perfume, tiny droplets of the liquid are atomized into the air where they quickly evaporate. The gas particles move randomly about, diffusing into surrounding air in the room, becoming more dilute as they spread out. Soon the entire room contains some of the perfume molecules.
What happens when you open a bottle of perfume in one corner of a room?
Answer. When a bottle of perfume is opened in a corner of a room, the scent soon spreads all over the room. This physical procedure is called diffusion, due to which the liquid or gaseous molecules travels from the area of higher density to that of the lower density of that substance.
What happens when you spray perfume in the corner of a room?
Diffusion is the movement of one type of gas molecules through another. The molecules of air in the room and the molecules of perfume in the spray are all moving around quickly and randomly (in all directions). The molecules of perfume collide with other molecules of their own type and also with molecules air.
When a bottle of perfume is opened in a room?
When a bottle of perfume in opened, fragrance of perfume spreads in the whole room. This behaviour is due to larger spaces in between the tiny particles of gas and their random movements which leads to the process of diffusion.
When a bottle of perfume is opened in a room we can smell it even from a considerable distance?
When we open a bottle of perfume in a room, we can smell it even from considerable distance. This is because, when the perfume is opened, that gas of the perfume moves from its areas of high concentration to its areas of low concentration. This process is called diffusion.
What happens when the lid of a bottle of perfume is opened?
Answer. Opening the bottle of perfume, molecules get mixed with the air. Particles in the perfume get mixed with the particles of air as well as spread with reaching at the distances. Smelled perfume are mixed with body chemistry in user and heated to the body temperature.
What happens when you open a bottle of perfume Class 9?
When we open the purfume bottle the particles of perfume get mixed with the particles of air and spread and reach us even at a distance. This process is called diffusion.
Why does fragrance of perfume spread so fast?
The smell of perfume spreads very fast because perfume is in the gaseous state and it’s spread in air. In the gaseous state, the particles move randomly at high speed. Due to high speed of particles and large space between them, gases shows the property of diffusing very fast .
Why diffusion occurs more quickly in a gas than in a liquid?
The distance between the constituent particles in gases becomes greater than in liquids, resulting in diffusion faster in gases than in liquids. Therefore, gas particles have higher kinetic energy and travel more rapidly. Therefore, diffusion of gases is much quicker than liquid diffusion.
Why is diffusion faster in gases?
Gaseous particles tend to undergo diffusion because they have kinetic energy. Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy. Graham’s Law states that the effusion rate of a gas is inversely proportional to the square root of the mass of its particles.
How is diffusion used in everyday life?
Perfume is sprayed in one part of a room, yet soon it diffuses so that you can smell it everywhere. A drop of food coloring diffuses throughout the water in a glass so that, eventually, the entire glass will be colored. Water diffuses into cooking noodles, making them bigger and softer. …
What energy is needed for diffusion?
kinetic energy
Which activity can occur without the use of energy?
Passive transport involves movement of ions and other atomic or molecular substances across cell membranes without need of energy input. -Unlike active transport, passive transport does not require an input of cellular energy (ATP). Examples of types of passive transport are osmosis and diffusion.