A) 200 and 300
B) 300 and 400
C) 400 and 600
D) 500 and 600
Correct Answer: C
Solution :
\[{{\rho }_{total}}=p_{A}^{o}.{{x}_{A}}+p_{B}^{o}.{{x}_{B}}\] \[550=p_{A}^{o}\times \frac{1}{4}+p_{B}^{o}\times \frac{3}{4}\] \[p_{A}^{o}+3p_{B}^{o}=2200\] ?(i) When 1 mole of y is further added to the solution \[560=p_{A}^{o}\times \frac{1}{5}+p_{B}^{o}\times \frac{4}{5}\] \[p_{A}^{o}+4p_{B}^{o}=2800\] ...(ii) On subtraction, (ii) - (i) \[p_{B}^{o}=2800-200=600\] On putting the value of\[p_{B}^{o}\]Eq. (i) \[p_{A}^{o}+3\times 600=220\] \[p_{A}^{o}=2200-1800=400\] On putting the value of\[p_{B}^{o}\]in Eq. (i) \[p_{A}^{o}+3\times 600=220\] \[{{p}_{{{A}_{0}}}}=2200-1800=400\]You need to login to perform this action.
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