A sample of oxygen gas in a closed system has a volume of 0.225 L at a pressure of 947 kPa. What will the pressure of the gas be when the volume is reduced to 0.216 L if the temperature remains constant?

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.