A 77.2 mol system of hydrogen exists at a pressure of 770 mm Homagama. if the gas is in a container that has a volume of 7.200 L what is the temperature of the hydrogen in degrees Celsius​

Ok where is the image ?

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).