How is the pressure of a gas related to ...

How is the pressure of a gas related to its density at a particular temperature ?

Text Solution

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Pressure is related to density of a gas as :
`p=(rhoRT)/(M)`
i.e., pressure is directly proportional to density of the gas at a particular temperature.

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The curve of pressure volume (PV) against pressure (P) of the gas at a particular temperature is as shown, according to the graph. Which of the following is incorrect (in the low pressure region)?

`H_(2)` and He shows +ve deviation from ideal gas equation

`CO, CH_(4)` and `O_(2)` show negative deviation from ideal gas equation.

`H_(2)` and He show negative deviation while `CO_(2), CH_(4)` and `O_(2)` show positive deviation

`H_(2)` and He are less compressible than that of an ideal gas while `CO_(2),CH_(4)` and `O_(2)` more compressible than that of ideal gas.

The curve of pressure volume (PV) against pressure (P) of the gas at a particular temperature is as shown, according to the graph which of the following is/are incorrect (in low pressure region):

`H_2` and He show positive deviation from ideal gas equation

CO, `CH_4` and `O_2` show negative deviation from ideal gas equation

`H_2` and He show negative deviation while `CO_2,CH_4` and `O_2` show positive deviation

`H_2` and He are less compressible than that of an ideal gas while `CO_2, CH_4` and `O_2` more compressible than that of ideal gas.

The curve of pressure volume (PV) against pressure (P) of the gas at a particular temperature is as shown, according to the graph which of the following is incorrect (in the low pressure region):

`H_(2)` and He shows +ve deviation from ideal gas equation.

`CO, CH_(4)` and `O_(2)` show negative deviation from ideal gas equation.

`H_(2)` and He show negative deviation while `CO, CH_(4)` and `O_(2)` show positive deviation.

`H_(2)` and He are less compressible than that of an ideal gas while `CO, CH_(4)` and `O_(2)` more compressible than that of ideal gas.