Atank has a volume of 0.1 m3 and is filled with he gas at a pressure of 5 x 106 pa. a second tank has a volume of 0.15 m' and is filled with he gas at a pressure of 6 x 106 pa. a valve connecting the two tanks is opened. assumıng he to be a monatomic ideal gas and the walls of the tanks to be adiabatic and rigıd, find the final pressure of the system hint: note that the internal energy is constant.

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .