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Question 74

Answer 2

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Asked by manasvijha 18th April 2019, 9:52 PM
Answered by Expert
Answer:
A c c o r d i n g space t o space R a o u l t apostrophe s space L a w comma
fraction numerator P subscript 0 minus P subscript s over denominator P subscript 0 end fraction space equals space chi subscript S o l u t e end subscript
M o l e s space o f space U r e a space equals space fraction numerator 1.5 over denominator 60 end fraction space equals space 0.025

M o l e s space o f space w a t e r space equals space 50 over 18 space equals 2.78
S o comma space chi subscript u r e a end subscript space equals space fraction numerator 0.025 over denominator 0.025 space plus space 2.78 end fraction space equals fraction numerator 0.025 over denominator 2.805 end fraction space equals space 0.0089

P u t t i n g space t h e space v a l u e space i n space a b o v e space e q u a t i o n space w e space g e t comma space

1 minus P subscript s over P subscript 0 space equals 0.0089
o r comma space P subscript s over P subscript 0 space equals 0.9911

S o comma space P subscript s space equals space 0.9911 space cross times 23.62 space equals 23.409 m m space left parenthesis V a p o u r space p r e s s u r e space o f space s o l u t i o n right parenthesis

t h u s space o p t i o n space 2 space i s space c o r r e c t.

left curly bracket P subscript 0 space equals space v a p o r space p r e s s u r e space o f space p u r e space s o l v e n t comma
P subscript s space equals space v a p o r space p r e s s u r e space o f space s o l u t i o n comma
chi subscript U r e a end subscript space equals space M o l e space f r a c t i o n space o f space u r e a right curly bracket
Answered by Expert 19th April 2019, 1:46 AM
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