A liquid does not wet the solid surface if the angle of contact is |
|||||||

a) |
Zero |
b) |
equal to 45 |
c) |
equal to 90 |
d) |
greater than 90 |

A liquid does not wet the solid surface if the angle of contact is |
|||||||

a) |
Zero |
b) |
equal to 45 |
c) |
equal to 90 |
d) |
greater than 90 |

1 Answer

127 votes

A liquid does not wet the solid surface if the angle of contact is obtuse ie, greater than . In this case cohesive forces will be greater than adhesive forces and so, the liquid does not wet the surface of solid. |

127 votes

127