As per Graham’s law, the rate of effusion or diffusion is inversely proportional to the square root of its molecular weight. Consequently, the gas with the least molecular weight effuses the fastest hence, helium gas has a higher rate of diffusion compared to nitrogen or oxygen.
Why do gases have the highest rate of diffusion?
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.
Which has the highest rate of diffusion solid liquid or gas?
Hence we can conclude the rate of diffusion of liquids is higher than solids due to the free movement of molecules and lack of strong force of attraction in liquids but rate of diffusion of liquids is lower than gases as in gases molecules are quite far apart. Hence the correct option is option C.
Which gas has lowest rate of diffusion?
As per Graham’s law, the rate of effusion or diffusion is inversely proportional to the square root of its molar mass. Hence, the gas with the highest molecular weight diffuses the slowest when it comes to rate of diffusion and helium is the fastest as it is the lightest.
What is an example of gas diffusion?
You can smell perfume because it diffuses into the air and makes its way into your nose. 2. Cigarette smoke diffuses into the air. ... In leaves, oxygen from the leaf cells diffuses out to the air.
Is diffusion faster gas or liquid?
Two factors affect diffusion: The type of substance – substances diffuse more quickly through gases than through liquids. This is because the particles in a gas are more spread out and move faster than the particles in a liquid. Temperature – the hotter the gas or liquid, the faster diffusion happens.
What is the rate of diffusion of gas?
Graham’s law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight .
In which case rate of diffusion is fastest?
2 Answers. In case of gaseous state, due to negligible force of attraction they can move freely. That is why rate of diffusion is faster in gases .
What is the highest rate of diffusion?
Consequently, the gas with the least molecular weight effuses the fastest hence, helium gas has a higher rate of diffusion compared to nitrogen or oxygen.
What is the rate of diffusion dependent on?
Several factors affect the rate of diffusion of a solute including the mass of the solute , the temperature of the environment, the solvent density, and the distance traveled.
In which state the rate of diffusion is least?
Diffusion takes place with slowest rate in the case of solids . The rate of diffusion is almost negligible in solids. Since the particles of solid have lowest kinetic energy so they do not move. Hence, diffusion takes a long time in the case of solid.
What is a real life example of diffusion?
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.
What are the 3 examples of diffusion?
- The smell of perfumes/Incense Sticks.
- Opening the Soda/Cold Drinks bottle and the CO 2 diffuses in the air.
- Dipping the tea bags in hot water will diffuse the tea in hot water.
- Small dust particles or smoke diffuse into the air and cause air pollution.
Is Tea an example of diffusion?
When we put tea bags into a cup of water , it automatically mixes in the whole cup of tea, and it happens due to diffusion. Tea bag contents diffuse from its higher concentration to lower concentration (water in the mug).
Why diffusion takes place faster in gas than liquid?
The molecules of gas have more kinetic energy than liquid molecules and are smaller. ... The distance between the constituent particles in gases becomes greater than in liquids , resulting in diffusion faster in gases than in liquids.
Why diffusion is faster in water?
This is because in hot water, the water molecules have more energy and are moving faster than the molecules of cold water. ... Because diffusion happens from high concentration to low concentration, the more molecules are moving, the more opportunities they have to mix together.
