`2X(g) rarr 3Y(g)+2Z(g)` `{:("Time (in min)",0,100,200,):}` `|{:("Partial pressure of X (mm Hg)",800,400,200,),("Assuming ideal gas condition, calculate",,,,):}|` (a) Order of reaction (b) Rate constant ( c) Time taken for `75%` completion of reaction (d) Total pressure when `p_(x) = 700 mm`

`2X(g) rarr 3Y(g)+2Z(g)` `{:("Time (in min)",0,100,200,):}` `|{:("Part

1.	`2X(g) rarr 3Y(g)+2Z(g)` `{:("Time (in min)",0,100,200,):}` `\|{:("Partial pressure of X (mm Hg)",800,400,200,),("Assuming ideal gas condition, calculate",,,,):}\|` (a) Order of reaction (b) Rate constant ( c) Time taken for `75%` completion of reaction (d) Total pressure when `p_(x) = 700 mm`
Answer» (i) Data shows that half of the reaction is contant, i.e. 100 min , hecne it is a first order reaction , (ii) `k=(0.693)/(t_(1//2))=(0.693)/(100)=693xx10^(-3)"min"^(-1)` (iii) `t_(75%),i.e.,t_(3//4)=2xxt_(1//2)=2xx100=200min` `2X(g)rarr3Y(g)+2Z(g)` `{:(t=0,800,0,0),(dt,800-2X,3X,2X):}` Total prssure =800-2X+3X+2X=800+3X....(i) 800-2X=700 X=50 `:.` Total pressure `=800+3xx50=950` mm Hg

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`2X(g) rarr 3Y(g)+2Z(g)` `{:("Time (in min)",0,100,200,):}` `|{:("Partial pressure of X (mm Hg)",800,400,200,),("Assuming ideal gas condition, calculate",,,,):}|` (a) Order of reaction (b) Rate constant ( c) Time taken for `75%` completion of reaction (d) Total pressure when `p_(x) = 700 mm`

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