Liquid State
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CHXI06:STATES OF MATTER

314283 The unit of surface tension is

1 Dynes \(\mathrm{\mathrm{cm}^{-2}}\)
2 Ergs \(\mathrm{/ \mathrm{cm}}\)
3 Joules \(\mathrm{\mathrm{m}^{-1}}\)
4 N.m \(\mathrm{{ }^{-1}}\)
CHXI06:STATES OF MATTER

314284 The surface tension of water at \(\mathrm{20^{\circ} \mathrm{C}}\) is 72.75 dyne \(\mathrm{\mathrm{cm}^{-1}}\). Its value in SI system is

1 \(\mathrm{2.275 \mathrm{~N} \mathrm{~m}^{-1}}\)
2 \(\mathrm{0.7275 \mathrm{~N} \mathrm{~m}^{-1}}\)
3 \(\mathrm{0.07275 \mathrm{~N} \mathrm{~m}^{-1}}\)
4 7.275 dyne \(\mathrm{\mathrm{cm}^{-1}}\)
CHXI06:STATES OF MATTER

314285 Statement A :
Liquids tend to have maximum number of molecules at their surface.
Statement B :
Small liquid drops have spherical shape.

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.
CHXI06:STATES OF MATTER

314286 When a capillary tube of diameter \(0.8 \mathrm{~mm}\) is dipped in a liquid having density \(800 \mathrm{~kg} \mathrm{~m}^{-3}\), then the height of liquid in the capillary tube rises to \(4 \mathrm{~cm}\). The surface tension of liquid is \(\left( {{\rm{g}} = 9.8\;{\rm{m}}/{{\rm{s}}^2}} \right)\)

1 \(4.3 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
2 \(5.6 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
3 \(6.3 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
4 \({\rm{7}}.{\rm{3}} \times {\rm{1}}{{\rm{0}}^{{\rm{ - 2}}}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
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CHXI06:STATES OF MATTER

314283 The unit of surface tension is

1 Dynes \(\mathrm{\mathrm{cm}^{-2}}\)
2 Ergs \(\mathrm{/ \mathrm{cm}}\)
3 Joules \(\mathrm{\mathrm{m}^{-1}}\)
4 N.m \(\mathrm{{ }^{-1}}\)
CHXI06:STATES OF MATTER

314284 The surface tension of water at \(\mathrm{20^{\circ} \mathrm{C}}\) is 72.75 dyne \(\mathrm{\mathrm{cm}^{-1}}\). Its value in SI system is

1 \(\mathrm{2.275 \mathrm{~N} \mathrm{~m}^{-1}}\)
2 \(\mathrm{0.7275 \mathrm{~N} \mathrm{~m}^{-1}}\)
3 \(\mathrm{0.07275 \mathrm{~N} \mathrm{~m}^{-1}}\)
4 7.275 dyne \(\mathrm{\mathrm{cm}^{-1}}\)
CHXI06:STATES OF MATTER

314285 Statement A :
Liquids tend to have maximum number of molecules at their surface.
Statement B :
Small liquid drops have spherical shape.

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.
CHXI06:STATES OF MATTER

314286 When a capillary tube of diameter \(0.8 \mathrm{~mm}\) is dipped in a liquid having density \(800 \mathrm{~kg} \mathrm{~m}^{-3}\), then the height of liquid in the capillary tube rises to \(4 \mathrm{~cm}\). The surface tension of liquid is \(\left( {{\rm{g}} = 9.8\;{\rm{m}}/{{\rm{s}}^2}} \right)\)

1 \(4.3 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
2 \(5.6 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
3 \(6.3 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
4 \({\rm{7}}.{\rm{3}} \times {\rm{1}}{{\rm{0}}^{{\rm{ - 2}}}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
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CHXI06:STATES OF MATTER

314283 The unit of surface tension is

1 Dynes \(\mathrm{\mathrm{cm}^{-2}}\)
2 Ergs \(\mathrm{/ \mathrm{cm}}\)
3 Joules \(\mathrm{\mathrm{m}^{-1}}\)
4 N.m \(\mathrm{{ }^{-1}}\)
CHXI06:STATES OF MATTER

314284 The surface tension of water at \(\mathrm{20^{\circ} \mathrm{C}}\) is 72.75 dyne \(\mathrm{\mathrm{cm}^{-1}}\). Its value in SI system is

1 \(\mathrm{2.275 \mathrm{~N} \mathrm{~m}^{-1}}\)
2 \(\mathrm{0.7275 \mathrm{~N} \mathrm{~m}^{-1}}\)
3 \(\mathrm{0.07275 \mathrm{~N} \mathrm{~m}^{-1}}\)
4 7.275 dyne \(\mathrm{\mathrm{cm}^{-1}}\)
CHXI06:STATES OF MATTER

314285 Statement A :
Liquids tend to have maximum number of molecules at their surface.
Statement B :
Small liquid drops have spherical shape.

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.
CHXI06:STATES OF MATTER

314286 When a capillary tube of diameter \(0.8 \mathrm{~mm}\) is dipped in a liquid having density \(800 \mathrm{~kg} \mathrm{~m}^{-3}\), then the height of liquid in the capillary tube rises to \(4 \mathrm{~cm}\). The surface tension of liquid is \(\left( {{\rm{g}} = 9.8\;{\rm{m}}/{{\rm{s}}^2}} \right)\)

1 \(4.3 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
2 \(5.6 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
3 \(6.3 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
4 \({\rm{7}}.{\rm{3}} \times {\rm{1}}{{\rm{0}}^{{\rm{ - 2}}}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
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CHXI06:STATES OF MATTER

314283 The unit of surface tension is

1 Dynes \(\mathrm{\mathrm{cm}^{-2}}\)
2 Ergs \(\mathrm{/ \mathrm{cm}}\)
3 Joules \(\mathrm{\mathrm{m}^{-1}}\)
4 N.m \(\mathrm{{ }^{-1}}\)
CHXI06:STATES OF MATTER

314284 The surface tension of water at \(\mathrm{20^{\circ} \mathrm{C}}\) is 72.75 dyne \(\mathrm{\mathrm{cm}^{-1}}\). Its value in SI system is

1 \(\mathrm{2.275 \mathrm{~N} \mathrm{~m}^{-1}}\)
2 \(\mathrm{0.7275 \mathrm{~N} \mathrm{~m}^{-1}}\)
3 \(\mathrm{0.07275 \mathrm{~N} \mathrm{~m}^{-1}}\)
4 7.275 dyne \(\mathrm{\mathrm{cm}^{-1}}\)
CHXI06:STATES OF MATTER

314285 Statement A :
Liquids tend to have maximum number of molecules at their surface.
Statement B :
Small liquid drops have spherical shape.

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.
CHXI06:STATES OF MATTER

314286 When a capillary tube of diameter \(0.8 \mathrm{~mm}\) is dipped in a liquid having density \(800 \mathrm{~kg} \mathrm{~m}^{-3}\), then the height of liquid in the capillary tube rises to \(4 \mathrm{~cm}\). The surface tension of liquid is \(\left( {{\rm{g}} = 9.8\;{\rm{m}}/{{\rm{s}}^2}} \right)\)

1 \(4.3 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
2 \(5.6 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
3 \(6.3 \times {10^{ - 2}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
4 \({\rm{7}}.{\rm{3}} \times {\rm{1}}{{\rm{0}}^{{\rm{ - 2}}}}\,{\rm{N}}{{\rm{m}}^{{\rm{ - 1}}}}\)
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