please answer this

Asked by Prashant DIGHE | 3rd Mar, 2020, 10:09: PM

Expert Answer:

Option (1) is correct.
 
Given:
 
Volume of container = 20 L
 
Temperature, t = 400 K
 
Pressure = 0.4 atm
 
The  given reaction is,
 
SrCO3(s)  rightwards harpoon over leftwards harpoon SrO(s)  + CO2(g) 
 
kp = 1.6 atm
 
PCO2 = 1.6 atm = Maximum pressure of CO2 
 
Volume of conatainer at this stage is;
 
PV space equals space nRT
straight V space equals nRT over straight P .....(1)
n = constant, as reaction was not at equilibrium.
 
 
straight n equals space PV over RT
straight n equals fraction numerator 0.4 cross times 20 over denominator RT end fraction  ....(2)
 
From eq(1) and (2)
 
straight V equals space open parentheses fraction numerator 0.4 cross times 20 over denominator RT end fraction close parentheses open parentheses fraction numerator RT over denominator 1.6 end fraction close parentheses

straight V space equals space 5 space straight L
 
 
The maximum volume of the container at maximum pressure is 5 L.

Answered by Varsha | 4th Mar, 2020, 01:18: PM