Question

A piston has an external pressure of 10.0 bar. How much work has been done in joules if the cylinder goes from a volume of 0.160 litres to 0.530 litres.

Express your answer with the appropriate units.

Answer #1

A gas is confined to a container with a massless piston at the
top. (Figure 2) A massless wire is attached to the
piston. When an external pressure of 2.03 bar is applied to the
wire, the gas compresses from 6.40 to 3.20 L . When the external
pressure is increased to 2.53 bar, the gas further compresses from
3.20 to 2.56 L .
In a separate experiment with the same initial conditions, a
pressure of 2.53 bar was applied to...

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0.100 moles of He are contained in a piston at equilibrium under
an external pressure of 2.80 atm at 298 K. The external pressure if
reduced to 1.20 atm and the piston is allowed to expand and return
to equilibrium, at the same temperature. How much work is done by
the system? Assume the gas is ideal.

How much work, in joules, does a piston do if its volume changes
from 0.5L to 3.5L? The piston's internal pressure is constant at 5
atm. 1 L*atm = 101.33 J.

A 19.0-L volume of an ideal gas in a cylinder with a piston is
at a pressure of 2.8 atm. Enough weight is suddenly removed from
the piston to lower the external pressure to 1.4 atm. The gas then
expands at constant temperature until its pressure is 1.4 atm.
Find the change in enthalpy, ?H, for this change in
state.
Express your answer using two significant figures.
Find the heat, q, associated with this change in
state.
Express your answer...

A closed, cylindrical piston contains an ideal gas initially at
a volume of 1.00L, temperature of 25.0ºC and internal pressure of
1.00 bar. The gas is compressed by applying an external pressure of
1.5bar to a volume of 0.200L.
a. (20 pts) What is the work done in compressing the gas?
b. (15 pts) If the above piston had diathermal walls and the
process occurred isothermally, how much heat would be
exchanged?
Show steps and Ill rate! Thanks for the...

Please solve the following problems. You must show all work.
1. A 10.0 cm radius piston compresses
a gas isothermally from a height of 15.0 cm to 2.50 cm at a
constant pressure of 2.0 atm.
a) How much heat was added to the
gas?
b) Now if 7000 J of heat is added to
the system and the piston is only moves 5.0 cm up, what is the
change in the internal energy of the system is the pressure...

A.) A gas confined by a piston expands isobarically at 30 kPa.
When 24,000 joules of heat is absorbed by the system, its volume
increases from 0.14 m3 to 0.4 m3. What work
is done on the system and what is the change in internal
energy?
Work Done by the System = Joules
Internal Energy Change = Joules
B.) The volume of a gas decreases from 7 to 4 liters under a
constant pressure of one atmosphere.
Is the work...

A dielectric-filled parallel-plate capacitor has plate area A =
10.0 cm2 , plate separation d = 10.0 mm and dielectric constant k =
4.00. The capacitor is connected to a battery that creates a
constant voltage V = 12.5 V . Throughout the problem, use ϵ0 =
8.85×10−12 C2/N⋅m2 .
Part A) Find the energy U1 of the dielectric-filled capacitor.
Express your answer numerically in joules.
Part B) The dielectric plate is now slowly pulled out of the
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Part A: How much work is done when a 115 g tomato is lifted 14.3 m?
* I got 16.1 J as an answer*
Part B: The tomato is dropped. What is the velocity, v, of the
tomato when it hits the ground? Assume 88.3% of the work done in
Part A is transferred to kinetic energy, E, by the time the tomato
hits the ground.
Express your answer with the appropriate units.

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