Question

two separate bulbs contain ideal gases A and B. the density of gas A is twice that of gas B. the molecular mass of A is half tjat of has B. the two gases are at the same temperature. the ratio of the pressures of A to that of gas B is
A) 2 B) 1/2 C) 4 D) 1/4​

Answer 1

C- 4

PV = nRT

P= ((M/rmm)/v)/RT. ( n=M/rmm)

P= (density/rmm)RT

Since RT are constant

P depends directly on density and inversely on molecular mass (rmm)