A gas of pure N2i s confined to a cylinder with a movable piston at one end. The initial pressure of gas is 1.2 x 105 N/m2, the initial volume is 1.0 x 10-3m3, and the initaltemperature is 30oC. (a) How many moles of the gas are in the container? If the piston is compressed so that the pressure is increased to 4.20 x 105 N/m2 and volume is decreased to 5.10 x 10-4m3, what is the new temperature of the gas?

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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.