CSIR NET
   Top Resources
Nivedha posted an Question
April 11, 2021 • 11:53 am 30 points
  • CSIR NET
  • Chemical Sciences

In an absorption cell, the transmittance of0.1 m solution ofa substance x is 80% and that of0.i m solution ofanother substance y is 60% at a given wavelength. t

In an absorption cell, the transmittance of0.1 M solution ofa substance X is 80% and that of0.I M solution ofanother substance Y is 60% at a given wavelength. The transmittance ofa solution that is simultaneously 0.1 M in X and 0.1 M in Y' will be: (a) 70% (b) 80% (c) 58% (d) 48%

2 Answer(s) Answer Now
  • 0 Likes
  • 3 Comments
  • 0 Shares
  • comment-profile-img>
    Dinesh khalmaniya 1 Best Answer

    option D explanation- let I° is incident intensity For X Let transmittance = T1 I° / I' = 80% = .8 For Y Let transmittance = T2 I' / I = 60% = .6 resultant T = I°/I = (I° / I') ×( I' / I) or T = T1× T2 or T= .8 × .6 = .48 = 48%

    images (29).png
    eduncle-logo-app

    you can go through this simple way if such type of question given in which resultant transmittance asked you can use below formula T = T1 × T2 given T1 = 80% = .8 T2 = 60% = .6 T = .8× .6 = .48 = 48%

  • comment-profile-img>
    Priyanshu kumar

    Is it option D?

    eduncle-logo-app

    yes, sir. But can you explain?

    eduncle-logo-app

    As you know absorbance are additive in nature and from there you get relation that transmittance are multiplicative in nature

    eduncle-logo-app

    see this

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers

Sign Up to Download FREE Study Material Worth Rs. 500/-