Q1) The diffusion rate differs between solids, liquids and gases because the:
a) the temperature is different in each form
b) Molecules are of different sizes in each form
c) The number of barriers in the molecules way differ
d) distance the molecule have to travel before they collide into another molecule differ.
Q2) Which of the following factors does NOT have a direct influence on the rate of diffusion:
a) Molecule size
b) Temperature
c) Colour
d) Barriers in the substance
Q3) The forces of attraction between the particles are _______ in solids, ______ in liquids and _________ in gases.
Q4) What is the effect of the temperature on the following- (HOTS)
a. Diffusion
b. Forces of attraction between the particles
Q5) Explain why diffusion of one solid in another solid is a very slow process.
Answers
Answer:
Q1) D
Q2)C
Q3)MAX,INTERMIDAT,MIN
Q4)A)INCRESE IN TEMPRATURE =>INCRESE IN K.E INCRESE IN DIFFUSION
b)dicresses
q5)because inter molucer attraction is to high
Answer:
Step-by-step explanation:
Ans 1. D
Because in gas, particles move randomly thus diffuse faster
In liquids, particles are loosely packed so they move slower than gases but faster than gases.
In solids, particles are closely packed so the diffuse the slowest.
Ans 2. C
Ans 3. The forces of attraction between the particles are _strong______ in solids, __medium/average___ in liquids and __weak_______ in gases.
Ans 4. Temperature has effect on diffusion. If a substance, like liquid, will be heated , it will have more energy so its particles will move faster, thus diffusing faster.
Boiling. If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. ... Liquids evaporate faster as they heat up and more particles have enough energy to break away. The particles need energy to overcome the attractions between them.
Ans 5. Because solid particles are closely packed together so they cant move randomly
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