what is the ratio of diffusion of the following:
A. Ne and Ar
B.PH3 and NH3
C.C4H10 and C2H4
r1r2=M2M1\frac{r_1}{r_2}=\sqrt{\frac{M_2}{M_1}}r2r1=M1M2
A. k=M(Ne)M(Ar)=2040=0.7k=\sqrt{\frac{M(Ne)}{M(Ar)}}=\sqrt{\frac{20}{40}}=0.7k=M(Ar)M(Ne)=4020=0.7
B. k=M(PH3)M(NH3)=31+3x114+3x1=1.37k=\sqrt{\frac{M(PH_3)}{M(NH_3)}}=\sqrt{\frac{31+3x1}{14+3x1}}=1.37k=M(NH3)M(PH3)=14+3x131+3x1=1.37
C. k=M(C4H10)M(C2H4)=4x12+1x102x12+4x1=1.44k=\sqrt{\frac{M(C_4H_{10})}{M(C_2H_4)}}=\sqrt{\frac{4x12+1x10}{2x12+4x1}}=1.44k=M(C2H4)M(C4H10)=2x12+4x14x12+1x10=1.44
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