1.

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):

Answer»

`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.

Solution :If `Z gt 1` positive deviation
`Z LT 1` negative deviation


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