Elevation in b.p. of an aqueous solution urea solution is 0.52°C. (K = 0.52°C mol kg) Hence, mole fraction of urea in this solution is : (A) 0.982 (B) 0.567 (C) 0.943 (D) 0.018 SUBJECT : CHEMISTRY 2 4

Question

Elevation in b.p. of an aqueous solution urea solution is 0.52°C. (K = 0.52°C mol kg) Hence, mole fraction of urea in this solution is :

(A) 0.982
(B) 0.567
(C) 0.943
(D) 0.018 SUBJECT : CHEMISTRY 2 4 –12 –4 –1 –6 –1 –5 –1 –12 –1 2 Kb(H2O) = 0.5 K kg mol−1. 2+ – –4 2 –1 –4 2 –1 2 2 –1 –4 –4 –4 –4 2 p 2+ + –2 –3 aA + bB ⇌cC + dD eq 7 –34 –34 2 –1 –35 2 –1 –31 2 –1 –34 2 –1 [X] mol L−1 [Y ] mol L−1 Initial rate mol L−1min−1 –3 –3 –3 –3 b –1 MAJOR TEST SERIES COURSE_PHASE - 1 9610ZMD800101250010

Prashant Kotian · Accepted Answer

Correct answer: D. ution is 0.52°C. (K = 0.52°C mol kg) Hence, mole fraction of urea in this solution is : (1) 0.982 (2) 0.567 (3) 0.943 (4) 0.018 SUBJECT : CHEMISTRY 2 4 –12 –4 –1 –6 –1 –5 –1 –12 –1 2 Kb(H2O) = 0.5 K kg mol−1. 2+ – –4 2 –1 –4 2 –1 2 2 –1 –4 –4 –4 –4 2 p 2+ + –2 –3 aA + bB ⇌cC + dD eq 7 –34 –34 2 –1 –35 2 –1 –31 2 –1 –34 2 –1 [X] mol L−1 [Y ] mol L−1 Initial rate mol L−1min−1 –3 –3 –3 –3 b –1 MAJOR TEST SERIES COURSE_PHASE - 1 9610ZMD800101250010

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