A 200 L adiabatic container is empty and closed by a stopcock. Ambient air is at 300 K at a pressure of 1 bar. The stopcock is opened to let exactly one mole of air into the container. a) Assuming that the air behaves as an ideal gas, find the temperature and pressure inside the container at equilibrium. b) Find the enthalpy and entropy change of the gas that is inside the container at the end of the process.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

i belive it is water