1.

273 K और 76 cm Hg पर एक गैस का घनत्व `1.964 g dm^(-3)` है , तो गैस है :A. `CH_(4)`B. `C_(2)H_(6)`C. `CO_(2)`D. Xe

Answer» Correct Answer - C
हम जानते है
`PV = nRT = (w)/(m)RT` या `P = (d)/(m) RT " "(because d = (w)/(V))`
`d = 1.964 gdm^(-3) = 1.964 xx10^(-3) g//c.c.`
`P = 76 cm Hg = 1 atm, R = 0.0821 L-atmK^(-1)mol^(-1)`
`therefore m = (dRT)/(P) = (1.964 xx10^(-3) xx0.0821 xx273)/(1)=44`
अतः गैस `CO_(2)` (अणुभार = 44) है ।


Discussion

No Comment Found

Related InterviewSolutions