A cylinder fitted with a frictionless piston contains nitrogen gas at STP
CHEMISTRY · Multi-part · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A cylinder fitted with a frictionless piston contains nitrogen gas at STP. The initial volume of the gas is 2.24L. The gas is slowly heated at constant pressure until its temperature reaches 546K. Take molar mass of N2=28gmol−1.
(a) Determine the initial mass of nitrogen present in the cylinder.
(b) Calculate the final volume of the gas after heating.
(c) Compute the work done by the gas during this expansion, expressing your answer in joules. (Take 1atm=1.013×105Pa.)