Boiling
Vapour pressure measures the tendency for the molecules to escape from liquid to the gas phase. At lower temperatures the vapour pressure of a liquid is much lower than the pressure on the surface of the liquid. When the temperature of the liquid is graduall..
Melting Points and Boiling Points
The melting and boiling points of group 14 elements are much higher as compared to those of group 13 elements. Explanation: It is because the atoms of group 14 can form four covalent bonds with each other and, therefore, there are strong binding forces between their atoms in bot..
3. Melting and boiling points
The melting and boiling points of halogens increase with increase in atomic number down the group. Explanation: The forces existing between these molecules are weak Van der Waals forces, which increase down the group. This is also clear from the change of state from fluorine to..
Effect of Pressure on the Boiling Point of Water
The boiling point of liquid is raised by increasing the pressure and reduced by lowering the pressure. It can be demonstrated by the apparatus shown in figure...
The boiling point of liquid is raised by increasing the pressure and reduced by lowering the pressure. It can be demonstrated by the apparatus shown in figure...Boiling point
The boiling points of alkenes gradually increase with an increase in the molecular mass (or chain length). This indicates that inter-molecular attractions become stronger with an increase in the size of the molecule. Branched chain alkenes have lower boiling poin..
Boiling points
Ammonia (240 K) has a higher boiling point than phosphine (190 K) and then the boiling point increases down the group because of increase in size. In PH 3 and other hydrides, the intermolecular forces are Van der Waals' forces. These van der Waals' forc..
Ammonia (240 K) has a higher boiling point than phosphine (190 K) and then the boiling point increases down the group because of increase in size. In PH 3 and other hydrides, the intermolecular forces are Van der Waals' forces. These van der Waals' forc..Boiling point
Pure nitric acid boils at 86 o C. However it undergoes partial decomposition at this temperatur..
Melting Points and Boiling Points
The melting and boiling points of group 14 elements are much higher as compared to those of group 13 element..
Melting and Boiling Point
Metals have high melting and boiling point - Tungsten has the highest melting point where as Hg has low boiling point. Na and K have low melting points..
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