Butane escaping n.t.p. a cylinder gathers on the floor. Justify by calculation!
At normal temperature:
$\rho_{butane}$ $=$ $\frac{M}{22,4}$ $=$ $\frac{58}{22,4}$ $=$ $2.59\frac{g}{L}$
But
$\rho_{air}=1,29\frac{g}{L} \lt \rho_{butane}$
which gives us the answer!
