Amedeo Avogadro (1776-1856). Gives the relationship between volume and amount when pressure and temperature are held constant. Remember amount is measured in moles. Also, since volume is one of the variables, that means the container holding the gas is flexible in some way and can expand or contract.medeo Avogadro (1776-1856). Gives the relationship between volume and amount when pressure and temperature are held constant. Remember amount is measured in moles. Also, since volume is one of the variables, that means the container holding the gas is flexible in some way and can expand or contract.
Definition of presidence. plural. -s. 1 : the action or fact of presiding : direction, superintendence by the presidence and guidance of an unseen governing power â William Wollaston. 2 : presidency 1a preserve both the senate and the presidence â P. G. Hamerton.
In modern times, the vice president rarely presides over day-to-day matters in the Senate; in his place, the Senate chooses a President pro tempore (or president for a time) to preside in the vice president's absence; the Senate normally selects the longest-serving senator in the majority party.he executive power of both the vice president and the president is granted under Article Two, Section One of the Constitution. The vice president is indirectly elected, together with the president, to a four-year term of office by the people of the United States through the Electoral College.