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Question
Give reasons for the following:
It is necessary to specify the pressure and temperature of gas while stating its volume.
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Solution
At a given temperature, the number of molecules of gas striking against the walls of the container per unit time per unit area is the same. Thus, gases exert the same pressure in all directions.
Because the volume of a gas changes remarkably with a change in temperature and pressure, it becomes necessary to choose a standard value of temperature pressure.
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RELATED QUESTIONS
At constant temperature, the effect of change of pressure on the volume of a gas was as given below:
|
Pressure in atmosphere |
Volume in liters |
|
0.20 |
112 |
|
0.25 |
89.2 |
|
0.40 |
56.25 |
|
0.60 |
37.40 |
|
0.80 |
28.10 |
|
1.00 |
22.4 |
(a) Plot the following graphs
- P vs V
- P vs 1/V
- PV vs P
Interpret each graph in terms of the law.
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Give its
(i) mathematical expression
(ii) graphical representation and
(iii) significance.
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Assuming temperature remaining constant calculate the pressure of the gas in the following:
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Fill in the blank with the correct word, from the words in option:
If the pressure of a fixed mass of a gas is kept constant and the temperature is increased, the volume correspondingly _______
Fill in the blank with the correct word, from the words in option:
1 dm3 of a gas is equal to _______.
According to Boyle’s law, the shape of the graph between pressure and reciprocal of volume is _______.
State Boyle’s law
The following question refers to one mole of chlorine gas.
What will happen to volume of gas, if pressure is doubled?
