Cp/Cv for Helium, Nitrogen, and Carbon Dioxide: VIDEO/DVD, The ratio of specific heats of gases, Cp/Cv=y, is a signature of the number of atoms in the molecule. In this program, students measure this ratio for mono-, di-, and triatomic gases. The experimental apparatus consists of two large glass flasks connected by a glass tube with a steel ball which slides smoothly inside the tube. The two flasks are filled with helium to atmospheric pressure first. When the steel ball is displaced, it oscillates as a result of the compression of the gas in the flask toward which it moves and the expansion of the gas in the opposite flask. The square root of y is inversely related to the period of oscillation. Students measure the period of oscillation of the steel ball for the three different gases and from their measurements calculate y.


			Cp/Cv for Helium, Nitrogen, and Carbon Dioxide

The ratio of specific heats of gases, Cp/Cv=y, is a signature of the number of atoms in the molecule. In this program, students measure this ratio for mono-, di-, and triatomic gases. The experimental apparatus consists of two large glass flasks connected by a glass tube with a steel ball which slides smoothly inside the tube. The two flasks are filled with helium to atmospheric pressure first. When the steel ball is displaced, it oscillates as a result of the compression of the gas in the flask toward which it moves and the expansion of the gas in the opposite flask. The square root of y is inversely related to the period of oscillation. Students measure the period of oscillation of the steel ball for the three different gases and from their measurements calculate y. (15 minutes)

ORDER CODE: FFMBVL1084V
VHS VIDEO

ORDER CODE: FFMBVL1084DVD
DVD