Question

A balloon contains 0.692mol of ammonia gas,NH3(g), at 280k and a pressure of 0.810bar. What is the volume of the balloon?

Answer 1

$n=0.692 mol\newline T=280K\newline P=0.810bar=0.810*0.987=0.8atm\newline R=0.0821\hspace{0.1cm} litre\hspace{0.1cm} atm\hspace{0.1cm} /(K\hspace{0.1cm} mol)\newline PV=nRT \newline V=19.88\hspace{0.1cm}litre\newline Answer:19.88\hspace{0.1cm}litre$