Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium $($He$),$ and its temperature is $174$ K $.$ The other gas is neon $(Ne).$ What is the temperature of the neon?$($The molar mass of Helium is $4\mathrm{.}0026$ g and that one of Neon is $20\mathrm{.}1797$ g $)$

K

$8.$ A rigid tank contains $68\mathrm{.}0$ g of chlorine gas $(C{l}_2)$ at a temperature of $76C$ and an absolute pressure of $5\mathrm{.}50{10}^5$ Pa$.$ The mass per mole of $C{l}_2$ is $70\mathrm{.}9\frac{g}{m}ol.$ Determine the volume of the tank.

liters