kinetic theory provides insight macroscopic properties of gases considering molecular composition , motion. starting definitions of momentum , kinetic energy, 1 can use conservation of momentum , geometric relationships of cube relate macroscopic system properties of temperature , pressure microscopic property of kinetic energy per molecule. theory provides averaged values these 2 properties.
the theory explains how gas system responds change. example, gas heated absolute zero, when (in theory) still, internal energy (temperature) increased. gas heated, particles speed , temperature rises. results in greater numbers of collisions container per unit time due higher particle speeds associated elevated temperatures. pressure increases in proportion number of collisions per unit time.
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