What you’ll learn3 learning objectivesChoose one objective for a focused lesson, or study the complete topic.15.2.1A gas obeying pV ∝ T, where T is the thermodynamic temperature, is known• understand that a gas obeying pV ∝ T, where T is the thermodynamic temperature, is known as an ideal gasSyllabus objective15.2.2The equation of state for an ideal gas expressed as pV = nRT• recall and use the equation of state for an ideal gas expressed as pV = nRT, where n = amount of substance (number of moles) and as pV = NkT, where N = number of moleculesSyllabus objective15.2.3That the Boltzmann constant k is given by k = R / NA• recall that the Boltzmann constant k is given by k = R / NASyllabus objective