By heating 2 mol of nitrogen gas in a frictionless piston-cylinder, the gas expands at a constant pres- sure of 1 bar from an initial volume of 0.02 m5 to a final volume of 0.05 m5. the gas temperature correspondingly increases from 300 to 500 k. assuming nitrogen is an ideal gas with a molar heat capacity c ^r (where r is the gas constant), find the amount of heat added and work derived from the gas expansion.

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sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

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solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.