Kinetic Theory

• Atomic hypothesis: All things are made of atoms − little particles that move around in perpetual motion, attracting each other when they are at a little distance apart and repelling when squeezed into one another.

• Atomic theory: Proposed by John Dalton to explain the laws of definite and multiple proportions.

• First law states that any given compound has fixed proportion by mass of its constituents.

• Second law states that when two elements form more than one compound, for a fixed mass of one element, the masses of the other elements are in the ratio of small integers.

• Gay-Lussac’s law: When g…