Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
19.4k views
in Chemistry by (50.2k points)

If P0 and Pare the vapour pressures of a solvent and its solution respectively and N1 and N2 are the mole fractions of the solvent and non-volatile solute respectively, then correct relation is :

(A) P = P0N2 

(B) P = P0N1

(C) P0 = PN1 

(D) P = P0(N1/N2)

1 Answer

+1 vote
by (56.7k points)
selected by
 
Best answer

Correct Answer is: (B) P = P0N1

Acc. of Rault’s law P = PA + PB

for non volatile solute = PB = 0

Ps = PA

Ps = P0 A XA XA =mole fractions of solvent =N1

so P = P0 N1 P0A = P0.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...