A) 1.2 atm
B) 2.4 atm
C) 2.0 atm
D) 1.0 atm
Correct Answer: B
Solution :
[b] \[\begin{matrix} {{N}_{2}}{{O}_{2}} & \rightleftharpoons & 2N{{O}_{2}} \\ 1 & {} & 0 \\ (1-0.2) & {} & 2\times 0.2=0.4 \\ \end{matrix}\] Total pressure =1.2 As the temperature is doubled, the pressure becomes double. Therefore, the total final pressure is \[1.2\times 2=2.4\text{ }atm.\]
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