The number of molecules of an ideal gas in a 8.2 L container at 380 torr and `27^(@)C` will be

Options

A. `6.02 xx 10^(23)`
B. `1.0 xx 10^(22)`
C. `1.0 xx 10^(23)`
D. `1.204xx 10^(24)`

Answer

C

Explanation

Number of molecules `= ( pV)/( RT) xx N_(0)`
`= ( 380 //760 xx 8.2)/( 0.082 xx 300) xx 6.02 xx 10^(23)`
`= 1.0 xx 10^(23)`