Adsorption
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXII05:SURFACE CHEMISTRY

320822 The volume of gases \(\mathrm{NH}_{3}, \mathrm{CO}_{2}\) and \(\mathrm{CH}_{4}\) adsorbed by one gram of charcoal at \(298 \mathrm{~K}\) are in the order of

1 \(\mathrm{CH}_{4}>\mathrm{CO}_{2}>\mathrm{NH}_{3}\)
2 \(\mathrm{NH}_{3}>\mathrm{CH}_{4}>\mathrm{CO}_{2}\)
3 \(\mathrm{NH}_{3}>\mathrm{CO}_{2}>\mathrm{CH}_{4}\)
4 \(\mathrm{CO}_{2}>\mathrm{NH}_{3}>\mathrm{CH}_{4}\)
CHXII05:SURFACE CHEMISTRY

320823 According to Langmuir adsorption isotherm, the amount of gas adsorbed at very high pressures

1 Increases first and decreases later with pressure
2 Goes on decreasing with pressure
3 Goes on increasing with pressure
4 Reaches a constant limiting value
CHXII05:SURFACE CHEMISTRY

320824 Statement A :
The relation \(\dfrac{\mathrm{x}}{\mathrm{m}}=\mathrm{k} \cdot \mathrm{p}^{1 / \mathrm{n}}\) is known as Freundlich adsorption isotherm, where \(\mathrm{x}\) is the mass of gas adsorbed by \(\mathrm{m}\) grams of adsorbate, \(\mathrm{p}\) is the equilibrium pressure, \(\mathrm{k}\) and \(\mathrm{n}\) are constants for given system and temperature.
Statement B :
When several substances have same value of \(\dfrac{1}{\mathrm{n}}\), the lines by which their adsorption isotherms can be represented will meet at a point.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII05:SURFACE CHEMISTRY

320825 For Freundlich isotherm a graph of \({\rm{log}}\,\,\,\frac{{\rm{x}}}{{\rm{m}}}\) is plotted against \(\log\) P. The slope of the line and its y-axis intercept, respectively corresponds to

1 \(\dfrac{1}{\mathrm{n}}, \mathrm{k}\)
2 \(\log \dfrac{1}{\mathrm{n}}, \mathrm{k}\)
3 \(\dfrac{1}{\mathrm{n}}, \log \mathrm{k}\)
4 \(\log \dfrac{1}{\mathrm{n}}, \log \mathrm{k}\)
CHXII05:SURFACE CHEMISTRY

320822 The volume of gases \(\mathrm{NH}_{3}, \mathrm{CO}_{2}\) and \(\mathrm{CH}_{4}\) adsorbed by one gram of charcoal at \(298 \mathrm{~K}\) are in the order of

1 \(\mathrm{CH}_{4}>\mathrm{CO}_{2}>\mathrm{NH}_{3}\)
2 \(\mathrm{NH}_{3}>\mathrm{CH}_{4}>\mathrm{CO}_{2}\)
3 \(\mathrm{NH}_{3}>\mathrm{CO}_{2}>\mathrm{CH}_{4}\)
4 \(\mathrm{CO}_{2}>\mathrm{NH}_{3}>\mathrm{CH}_{4}\)
CHXII05:SURFACE CHEMISTRY

320823 According to Langmuir adsorption isotherm, the amount of gas adsorbed at very high pressures

1 Increases first and decreases later with pressure
2 Goes on decreasing with pressure
3 Goes on increasing with pressure
4 Reaches a constant limiting value
CHXII05:SURFACE CHEMISTRY

320824 Statement A :
The relation \(\dfrac{\mathrm{x}}{\mathrm{m}}=\mathrm{k} \cdot \mathrm{p}^{1 / \mathrm{n}}\) is known as Freundlich adsorption isotherm, where \(\mathrm{x}\) is the mass of gas adsorbed by \(\mathrm{m}\) grams of adsorbate, \(\mathrm{p}\) is the equilibrium pressure, \(\mathrm{k}\) and \(\mathrm{n}\) are constants for given system and temperature.
Statement B :
When several substances have same value of \(\dfrac{1}{\mathrm{n}}\), the lines by which their adsorption isotherms can be represented will meet at a point.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII05:SURFACE CHEMISTRY

320825 For Freundlich isotherm a graph of \({\rm{log}}\,\,\,\frac{{\rm{x}}}{{\rm{m}}}\) is plotted against \(\log\) P. The slope of the line and its y-axis intercept, respectively corresponds to

1 \(\dfrac{1}{\mathrm{n}}, \mathrm{k}\)
2 \(\log \dfrac{1}{\mathrm{n}}, \mathrm{k}\)
3 \(\dfrac{1}{\mathrm{n}}, \log \mathrm{k}\)
4 \(\log \dfrac{1}{\mathrm{n}}, \log \mathrm{k}\)
CHXII05:SURFACE CHEMISTRY

320822 The volume of gases \(\mathrm{NH}_{3}, \mathrm{CO}_{2}\) and \(\mathrm{CH}_{4}\) adsorbed by one gram of charcoal at \(298 \mathrm{~K}\) are in the order of

1 \(\mathrm{CH}_{4}>\mathrm{CO}_{2}>\mathrm{NH}_{3}\)
2 \(\mathrm{NH}_{3}>\mathrm{CH}_{4}>\mathrm{CO}_{2}\)
3 \(\mathrm{NH}_{3}>\mathrm{CO}_{2}>\mathrm{CH}_{4}\)
4 \(\mathrm{CO}_{2}>\mathrm{NH}_{3}>\mathrm{CH}_{4}\)
CHXII05:SURFACE CHEMISTRY

320823 According to Langmuir adsorption isotherm, the amount of gas adsorbed at very high pressures

1 Increases first and decreases later with pressure
2 Goes on decreasing with pressure
3 Goes on increasing with pressure
4 Reaches a constant limiting value
CHXII05:SURFACE CHEMISTRY

320824 Statement A :
The relation \(\dfrac{\mathrm{x}}{\mathrm{m}}=\mathrm{k} \cdot \mathrm{p}^{1 / \mathrm{n}}\) is known as Freundlich adsorption isotherm, where \(\mathrm{x}\) is the mass of gas adsorbed by \(\mathrm{m}\) grams of adsorbate, \(\mathrm{p}\) is the equilibrium pressure, \(\mathrm{k}\) and \(\mathrm{n}\) are constants for given system and temperature.
Statement B :
When several substances have same value of \(\dfrac{1}{\mathrm{n}}\), the lines by which their adsorption isotherms can be represented will meet at a point.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII05:SURFACE CHEMISTRY

320825 For Freundlich isotherm a graph of \({\rm{log}}\,\,\,\frac{{\rm{x}}}{{\rm{m}}}\) is plotted against \(\log\) P. The slope of the line and its y-axis intercept, respectively corresponds to

1 \(\dfrac{1}{\mathrm{n}}, \mathrm{k}\)
2 \(\log \dfrac{1}{\mathrm{n}}, \mathrm{k}\)
3 \(\dfrac{1}{\mathrm{n}}, \log \mathrm{k}\)
4 \(\log \dfrac{1}{\mathrm{n}}, \log \mathrm{k}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXII05:SURFACE CHEMISTRY

320822 The volume of gases \(\mathrm{NH}_{3}, \mathrm{CO}_{2}\) and \(\mathrm{CH}_{4}\) adsorbed by one gram of charcoal at \(298 \mathrm{~K}\) are in the order of

1 \(\mathrm{CH}_{4}>\mathrm{CO}_{2}>\mathrm{NH}_{3}\)
2 \(\mathrm{NH}_{3}>\mathrm{CH}_{4}>\mathrm{CO}_{2}\)
3 \(\mathrm{NH}_{3}>\mathrm{CO}_{2}>\mathrm{CH}_{4}\)
4 \(\mathrm{CO}_{2}>\mathrm{NH}_{3}>\mathrm{CH}_{4}\)
CHXII05:SURFACE CHEMISTRY

320823 According to Langmuir adsorption isotherm, the amount of gas adsorbed at very high pressures

1 Increases first and decreases later with pressure
2 Goes on decreasing with pressure
3 Goes on increasing with pressure
4 Reaches a constant limiting value
CHXII05:SURFACE CHEMISTRY

320824 Statement A :
The relation \(\dfrac{\mathrm{x}}{\mathrm{m}}=\mathrm{k} \cdot \mathrm{p}^{1 / \mathrm{n}}\) is known as Freundlich adsorption isotherm, where \(\mathrm{x}\) is the mass of gas adsorbed by \(\mathrm{m}\) grams of adsorbate, \(\mathrm{p}\) is the equilibrium pressure, \(\mathrm{k}\) and \(\mathrm{n}\) are constants for given system and temperature.
Statement B :
When several substances have same value of \(\dfrac{1}{\mathrm{n}}\), the lines by which their adsorption isotherms can be represented will meet at a point.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII05:SURFACE CHEMISTRY

320825 For Freundlich isotherm a graph of \({\rm{log}}\,\,\,\frac{{\rm{x}}}{{\rm{m}}}\) is plotted against \(\log\) P. The slope of the line and its y-axis intercept, respectively corresponds to

1 \(\dfrac{1}{\mathrm{n}}, \mathrm{k}\)
2 \(\log \dfrac{1}{\mathrm{n}}, \mathrm{k}\)
3 \(\dfrac{1}{\mathrm{n}}, \log \mathrm{k}\)
4 \(\log \dfrac{1}{\mathrm{n}}, \log \mathrm{k}\)