Question

Consider a mixture of oxygen and hydrogen kept at room temperature, As compared to a hydrogen molecule an oxygen molecule hits the wall
A. with greater average speed
B. with smaller average speed
C. with greater average kinetic energy
D. with smaller average kinetic energy

Answer 1

Correct Answer - B
`(bar(v)_(O_(2)))/(bar(v)_(H_(2))) = sqrt((M_(0))_(H_(2))/((M_(0))_(O_(2)))) = sqrt((2)/(32)) = (1)/(4)`
`bar(v)_(O_(2)) = (bar(v)_(H_(2)))/(4)`