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The degree of polymerization, the average number of monomer units per polymer unit.

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Bomb Calorimeter

A device used to measure the heat transfer between system and surroundings at constant volume.

Isomorphous

Refers to crystals having the same atomic arrangement.

End Point

The point at which an indicator changes colour and a titration is stopped.

Nickel-cadmium cell (Nicad battery)

A dry cell in which the anode is Cd, the cathode is NiO2, and the electrolyte is basic.

Vapor Pressure

The particle pressure of a vapor at the surface of its parent liquid.

Diamagnetism

Weak repulsion by a magnetic field.

Endothermicity

The absorption of heat by a system as the process occurs.

Dipole-dipole Interactions

Attractive interactions between polar molecules, that is, between molecules with permanent dipoles.

Gel

Colloidal suspension of a solid dispersed in a liquid, a semirigid solid.

Density

Density is the ratio b/w Mass and Volume: D=M/V