Saved Bookmarks
| 1. |
A `6.4 gm` sample of methanol `(CH_(3) OH)` was placed in an otherwise empty 1 litre flask and heated to `227^(@)C` to varpoise the methanol. Methanol vapour decomposes by following gasesous compound to effuse out of flask. Measurement shows it contains 32 times as much as `H_(2) (g)` as `CH_(3)OH (g)`. Then Total pressure of mixture at equilibrium.A. `2.08` atmB. `20.8` atmC. `5.2` atmD. `10.4` atm |
|
Answer» Correct Answer - B `K_(C) = (4^(2))/(5^(2)) xx (1)/(5^(2)) = ((4)/(5))^(4)` `n_("total") = a_(0) (1 + 2 alpha) = 0.2 (1 + (8)/(5)) = (2.6)/(5)` `P_("total") = (n_(t))/(V) RT = (2.6)/(5) xx 0.08 xx 500` `P_("total") = 20.8` atm |
|