The rms speed of the particles of fume of mass 5 × 10-17 kg executing Brownian motion in air at STP is ……
A. 1.5 ms-1
B. 3.0 ms-1
C. 1.5 cm s-1
D. 3.0 cm s-1
Answer:C
The rms speed of the particles of fume of mass 5 × 10-17 kg executing Brownian motion in air at STP is ……
A. 1.5 ms-1 B. 3.0 ms-1 C. 1.5 cm s-1 D. 3.0 cm s-1