If nitrogen gas and oxygen gas are combined in a tank, they will be at the same tem­ perature and fill the same volume. a) Basing your explanation on the kinetic theory of gases, as derived in Section 15.1, explain why you would find the total pressure in the tank by adding together the indi­ vidual pressures of the nitrogen and oxygen acting alone. This conclusion is known as Dalton's Law of Partial Pressures. b) A l-m 3 tank contains 0.8 moles of nitrogen and 0.2 moles of oxygen at 300 K. What is the total pressure in the tank?

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.