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Gases
- 4. The kinetic molecular theory describes the motion of atoms and molecules and explains the properties of gases. As a basis for understanding this concept:
- a. Students know the random motion of molecules and their collisions with a surface create the observable pressure on that surface. Ch. 13.1
- b. Students know the random motion of molecules explains the diffusion of gases. Ch. 13.1
- c. Students know how to apply the gas laws to relations between the pressure, temperature, and volume of any amount of an ideal gas or any mixture of ideal gases. Ch. 14.1
- d. Students know the values and meanings of standard temperature and pressure (STP). p. 431
- e. Students know how to convert between the Celsius and Kelvin temperature scales. p. 30
- f. Students know there is no temperature lower than 0 Kelvin. p. 423
- g.* Students know the kinetic theory of gases relates the absolute temperature of a gas to the average kinetic energy of its molecules or atoms. Ch. 14.1
- h.* Students know how to solve problems by using the ideal gas law in the form PV = nRT. Ch. 14.3
- i.* Students know how to apply Dalton's law of partial pressures to describe the composition of gases and Graham's law to predict diffusion of gases. Ch. 13.1
- The standards marked with an asterisk need to be learned by the honors chemistry class only. All other standards need to be learned by all chemistry students.
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