Author Question: If the temperature of a gas is increased from 20C to 100C, by what factor does the rms speed of an ... (Read 85 times)

rosent76 · **on:** Jul 29, 2018

If the temperature of a gas is increased from 20C to 100C, by what factor does the rms speed of an ideal molecule change?

A) 1.1
B) 1.3
C) 2.2
D) 1.6

Question 2

How much energy is necessary to place three +2.0-C point charges at the vertices of an equilateral triangle of side 2.0 cm if they started out extremely far away? (k = 1/40 = 9.0 109 N m2/C2)

A) 4.5 J
B) 5.4 J
C) 6.7 J
D) 7.6 J