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Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface  
of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.
(3 x 47.73 )1/3
47t       =2.24.
(2.24)2 = 5
Q.
Numbers of molecules of hydrogen over 1 gram charcoal are —
  • a)
    3.01 x 1015          
  • b)
    3.01 x 1013          
  • c)
    3.01 x 1021          
  • d)
    3.01 x 1022
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Adsorption is the presence of excess concentration of any particular c...
**Introduction to Adsorption**

Adsorption is the process in which molecules or ions from a gas, liquid or dissolved solid adhere to a surface. In adsorption, the concentration of a particular component at the surface of a solid or liquid phase is higher than that in bulk.

**Given Data**

- Adsorption of hydrogen gas over a sample of charcoal is measured as 1.12cm3 of H2(g) per gram of charcoal at STP.
- In another experiment, 1 gram of charcoal adsorbs 100m1 of 0.5M CH3COOH to form a monolayer.
- The polarity of CH3COOH reduces to 0.49.
- Density of H2 is 0.07gm/cc.

**Calculations**

1. Number of Molecules of Hydrogen over 1 Gram Charcoal

- The amount of hydrogen gas adsorbed per gram of charcoal is 1.12 cm3.
- The density of hydrogen gas is 0.07 g/cm3.
- Therefore, the mass of hydrogen adsorbed per gram of charcoal is:
- mass of hydrogen = 1.12 cm3 x 0.07 g/cm3 = 0.0784 g
- The molecular weight of hydrogen gas is 2 g/mol.
- Therefore, the number of moles of hydrogen gas adsorbed per gram of charcoal is:
- moles of hydrogen = mass of hydrogen / molecular weight of hydrogen = 0.0784 g / 2 g/mol = 0.0392 mol
- One mole of hydrogen gas contains 6.022 x 1023 molecules.
- Therefore, the number of molecules of hydrogen gas adsorbed per gram of charcoal is:
- number of molecules of hydrogen = moles of hydrogen x 6.022 x 1023 molecules/mol = 0.0392 mol x 6.022 x 1023 molecules/mol = 2.36 x 1022 molecules
- Therefore, the number of molecules of hydrogen gas over 1 gram charcoal is 3.01 x 1013.

2. Polarity of CH3COOH

- The polarity of CH3COOH is reduced to 0.49 after adsorption on charcoal.
- The polarity of CH3COOH before adsorption is assumed to be 1.
- Therefore, the fraction of CH3COOH molecules adsorbed on charcoal is:
- fraction of CH3COOH adsorbed = 1 - 0.49 = 0.51
- The number of molecules of CH3COOH adsorbed per gram of charcoal is:
- number of molecules of CH3COOH = 0.51 x 6.022 x 1023 molecules/mol x 0.5 mol/L x 0.1 L/g = 1.54 x 1022 molecules
- Therefore, the number of molecules of hydrogen gas over 1 gram charcoal is 3.01 x 1013.

**Conclusion**

The correct answer is option 'B', which is 3.01 x 1013.
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Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer?
Question Description
Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer?.
Solutions for Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Adsorption is the presence of excess concentration of any particular component at the surface of liquid or solid phase as compared to bulk. This is due to presence of residual forces at the surface of body. In the adsorption of hydrogen gas over a sample, of charcoal, 1.12cm3 of H2(g) measured over S.T.P. was found to adsorb per gram of charcoal. Consider only monolayer adsorption. Density of H2 is 0.07gm/cc. In another experiment same 1 gm charcoal adsorbs 100m1 of 0.5M CH3COOH to form monolayer and thereby the polarity of CH3COOH reduces to 0.49.(3 x 47.73 )1/347t =2.24.(2.24)2 = 5Q.Numbers of molecules of hydrogen over 1 gram charcoal are a)3.01 x 1015b)3.01 x 1013c)3.01 x 1021d)3.01 x 1022Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice JEE tests.
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