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If 10-4 dm3 of water is introduced into a 1.0 dm3 flask at 300 K, how many moles of water are in in the vapour phase when equilibrium is established ?              [aieee-2010]
(Given : Vapour pressure of H2O at 300 is 3170 pa; R = 8.314 JK-1 mol)
  • a)
    1.27 x 10-3 mol
  • b)
    5.56 × 10-3 mol
  • c)
     1.53 x10-2 mol
  • d)
    4346 × 10-2 mol
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
If 10-4 dm3of water is introduced into a 1.0 dm3flask at 300 K, how ma...
The volume occupied by water molecules in vapour phase is (1×10−4) dm3, that is approximately (1×10−3) m3.
pvapV = nH2O mol
3170 × 1 × 10−3 = nH2O × 8.314 × 300K
nH2O = 3170 × 1 × 10−3 / 8.314 × 300
= 1.27 × 10−3 mol
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Most Upvoted Answer
If 10-4 dm3of water is introduced into a 1.0 dm3flask at 300 K, how ma...
The volume occupied by water molecules in vapour phase is (1×10−4) dm3, that is approximately (1×10−3) m3.
pvapV = nH2O mol
3170 × 1 × 10−3 = nH2O × 8.314 × 300K
nH2O = 3170 × 1 × 10−3 / 8.314 × 300
= 1.27 × 10−3 mol
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Community Answer
If 10-4 dm3of water is introduced into a 1.0 dm3flask at 300 K, how ma...
Yes option A is correct.. solution;PV=n×R×T. (since;n is of h20 and we want to find it) so;n=PV÷RT given data;P=3170; V=1×10^-3; R=8.314; T=300k n=3170×1×10^-3÷8.314×300 n=3170×10^-3÷8.314×3×10^2 n=3170×10^-5÷24.942 n=127.0×10^-5 n=1.27×10^2×10^-5 n=1.27×10^-3....hence proved... hope u clear...!!👍👍
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If 10-4 dm3of water is introduced into a 1.0 dm3flask at 300 K, how many moles of water are in in the vapour phase when equilibrium is established ? [aieee-2010](Given : Vapour pressure of H2O at 300 is 3170 pa; R = 8.314 JK-1 mol)a)1.27 x 10-3 molb)5.56 × 10-3 molc)1.53 x10-2 mold)4346 × 10-2 molCorrect answer is option 'A'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about If 10-4 dm3of water is introduced into a 1.0 dm3flask at 300 K, how many moles of water are in in the vapour phase when equilibrium is established ? [aieee-2010](Given : Vapour pressure of H2O at 300 is 3170 pa; R = 8.314 JK-1 mol)a)1.27 x 10-3 molb)5.56 × 10-3 molc)1.53 x10-2 mold)4346 × 10-2 molCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If 10-4 dm3of water is introduced into a 1.0 dm3flask at 300 K, how many moles of water are in in the vapour phase when equilibrium is established ? [aieee-2010](Given : Vapour pressure of H2O at 300 is 3170 pa; R = 8.314 JK-1 mol)a)1.27 x 10-3 molb)5.56 × 10-3 molc)1.53 x10-2 mold)4346 × 10-2 molCorrect answer is option 'A'. Can you explain this answer?.
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