PHYS 1010Q Lecture Notes - Lecture 13: Horse Length, Ideal Gas Law, Scale Of Temperature

• School: UConn
• Department: Physics
• Course: PHYS 1010Q
• Professor: Douglas Hamilton

Document Summary

Question 1 - a force of 25 n is exerted on the piston of a syringe. The piston has an area of 1 cm 2 . 1 cm2 = 25 n (0. 01 m)2 = 25n. The reason it is 10 -4 is because (0. 01 m) 2 = (10 -2 ) 2 = 10 -4. * need to first convert cm 2 to m since m is the si unit. If you increase the molecules in the piston, the pressure should go up. Pressure is proportional to n, which is molecules, if we hold everything else constant. If you lift the piston, the volume gets bigger, pressure goes down. If you keep everything else the same, pv will stay constant. (100 atm) (12 l) = (1. 25 atm) v 2. Measure of the average kinetic energy of the molecules. How fast these molecules are zipping around. The molecules of any substance are always in random motion.