Jan propped up a graham cracker in a shallow bowl . she then set up an electric fan to blow on the graham cracker at three different speeds what is jans dependent variable in his experiment

What is the temperature of one mole of helium gas at stp?

Classify this reaction: 2al+n2-> aln.

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms