Question

An insulated cylinder is fitted with an airtight piston that is
free to slide up and down and is connected to a rod. Contained
within the cylinder is an ideal gas initially at a pressure of 120
kPa and temperature of 293 K. Suddenly the piston is forced
downward creating an ** additional** 200 kPa
of pressure on the gas and as a result the cylinder volume
decreases to one-half of its original volume.

(a) What is the final temperature of the gas?

(b) This process is best described as (circle one option): Isothermal, Isovolumetric, Isobaric, Adiabatic, None of these.

(c) Justify your choice for part (b).

Answer #1

An insulated cylinder is fitted with an airtight piston that is
free to slide up and down and is connected to a rod, as shown in
the figure. Contained within the cylinder is an ideal gas initially
at a pressure of 120 kPa and temperature of 293 K. Suddenly the
piston is forced downward creating an additional 200 kPa of
pressure on the gas and as a result the cylinder volume decreases
to one-half of its original volume. (a) What...

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