Question

Q1(a) Given that at 120 ºC and 20 kPa, the mass density (ρ) of phosphorus vapour is 0.5698
kg m-3
. Show the molar mass (M) and molecular formula of phosphorus at the given
condition.

(b) There is 78.09 % of N2 in the atmosphere. Given that you are staying in a room with
the temperature of 16 ºC, show the root-mean-square speed of an N2 molecule in the air
that you are breathing.

please I need solution as soon as possible

Answer 1