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Capitolo 5

Gas

Pressione e misurazione della pressione
Pressione e misurazione della pressione
Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any ...
Leggi dei gas
Leggi dei gas
Through experiments, scientists established the mathematical relationships between pairs of variables, such as pressure and temperature, pressure and ...
Applicazione della legge dei gas ideali: massa molare, densità e volume
Applicazione della legge dei gas ideali: massa molare, densità e volume
The volume occupied by one mole of a substance is its molar volume. The ideal gas law, PV = nRT,  suggests that the volume of a given quantity of gas ...
Miscela di gas - Legge di Dalton delle pressioni parziali
Miscela di gas - Legge di Dalton delle pressioni parziali
Unless individual gases chemically react with each other, the individual gases in a mixture of gases do not affect each other’s pressure. Each gas ...
Stechiometria chimica e gas
Stechiometria chimica e gas
Chemical stoichiometry describes the quantitative relationships between reactants and products in chemical reactions. In addition to measuring quantities ...
Teoria cinetica molecolare: postulati di base
Teoria cinetica molecolare: postulati di base
The ideal-gas equation, which is empirical, describes the behavior of gases by establishing relationships between their macroscopic properties. For ...
Teoria cinetica molecolare e leggi dei gas
Teoria cinetica molecolare e leggi dei gas
The test of the kinetic molecular theory (KMT) and its postulates is its ability to explain and describe the behavior of a gas. The various gas laws ...
Velocità molecolari ed energia cinetica
Velocità molecolari ed energia cinetica
The kinetic molecular theory qualitatively explains the behaviors described by the various gas laws. The postulates of this theory may be applied in a ...
Effusione e diffusione
Effusione e diffusione
Although gaseous molecules travel at tremendous speeds (hundreds of meters per second), they collide with other gaseous molecules and travel in many ...
Gas reali - Deviazione dalla legge dei gas ideali
Gas reali - Deviazione dalla legge dei gas ideali
Thus far, the ideal gas law, PV = nRT, has been applied to a variety of different types of problems, ranging from reaction stoichiometry and empirical and ...
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