the process of direct change from solid to vapour is known as enthalpy of vaporization.
the process of direct change from solid to vapour is known as enthalpy of vaporization.
the process of direct change from solid to vapour is known as?
enthalpy of vaporization
this experiment provides effective explanation of the acids, bases, indicators reaction and also the properties of carbon dioxide. a large amount of the universal indicator, is first added to water for detecting the change of solution's ph. then, a few drop of ammonia or sodium hydroxide is mixed into the solution, which changes the color of the solution to a deep green color. subsequently, the addition of dry ice is required to alter the ph of the solution from basic to acidic condition. carbonic acid formed when dry ice is added to the liquid sample and lowers the ph. this alters the solution from weakly basic to acidic identified by the color change from green to yellow. thus, the solution's color gradually turns from deep green into orange color as more hydrogen ions aggregate in the solution. simultaneously, the cloud of carbon dioxide is generated from the sublimation process, direct change of solid to gas phase, due to the condensation of water vapor in the air.
dry ice color show
after incumbent senator tom wiens announced in april 2008 that he would not run for a second term, scheffel announced his candidacy for the seat; he had briefly sought the seat in 2004 before wiens declared his candidacy. scheffel defeated three other contenders — ed brewer, mark vanderbilt, and randy reed — to take 65 percent of the vote at the republican district assembly in may, the only candidate to qualify for the ballot by the assembly process. financial advisor and air force veteran bob denny petitioned onto the republican primary ballot. during the primary campaign, scheffel touted his experience as a tax attorney and familiarity as an asset in the legislature, but was outraised by denny, who took in about $24,000 to scheffel's $18,000. scheffel was also endorsed by retiring u.s. rep. tom tancredo. mark scheffel ultimately defeated bob denney in the contested republican primary in august, taking 65 percent of votes cast.
mark scheffel