Question

A 6.0-cm-diameter cylinder of nitrogen gas has a 4.0-cm-thick movable copper piston. The cylinder is oriented vertically, as shown in the figure, and the air above the piston is evacuated. When the gas temperature is 15 ∘C , the piston floats 20cm above the bottom of the cylinder.

A. What is the gas pressure?

B. How many gas molecules are in the cylinder?

C. Then 1.5 JJ of heat energy are transferred to the gas. What is the new equilibrium temperature of the gas in ∘C∘C?

D. What is the final height of the piston?

E. How much work is done on the gas as the piston rises?

Answer #1

Part A) A certain amount of chlorine gas was placed inside a
cylinder with a movable piston at one end. The initial volume was
3.00 L and the initial pressure of chlorine was 1.40 atm . The
piston was pushed down to change the volume to 1.00 L. Calculate
the final pressure of the gas if the temperature and number of
moles of chlorine remain constant.
part B) In an air-conditioned room at 19.0 ∘C, a spherical
balloon had the...

A 10 cm -diameter cylinder contains argon gas at 10 atm pressure
and a temperature of 60 ∘C . A piston can slide in and out of the
cylinder. The cylinder's initial length is 19 cm . 2600 J of heat
are transferred to the gas, causing the gas to expand at constant
pressure. 1-What is the final temperature of the cylinder? 2-What
is the final length of the cylinder?

1) 2 point charges are separated by a distance of 8 cm. The left
charge is 48 mC and the right charge is -16mC. Using a full sheet
of paper: draw the 2 charges separated by 8cm, centered in the
sheet. (if you are missing a ruler estimate 8cm as ⅓ a paper sheet
length). [6] a) Draw field lines to indicate the electric fields
for this distribution. [4] b) Draw 3 equipotential surfaces, 1
each, that pass: -Through the...

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