Question

**Problem:** A sample of monatomic ideal gas
containing 6.02´10^{23} atoms occupies a volume of
2.24´10^{-2} m^{3} at a pressure of
1.01´10^{5} Pa. With the volume held constant, the gas is
cooled until the atoms are moving at a root-mean-square speed of
402 m/s. The mass of each atom is 6.646´10^{-27} kg.

- What is the initial temperature of the gas?
- What is the final temperature of the gas?
- What is the change in entropy of the gas?

Answer #1

1. a) Suppose 2 moles of a monatomic ideal gas
occupies 5 m3 at a pressure of 1600 Pa.
First: Find the temperature of the gas in Kelvin.
Answer: 481 K
Second: Find the total internal energy of the gas.
Answer:12000 J
1. b) Suppose the gas undergoes an isobaric
expansion to a volume of 7 m3.
(Don’t forget to include + and – in each of the
problems below)
First: Find Q
Answer: 8000 J
Second: Find W
Answer:...

A cylinder containing 3.0 moles of a monatomic, ideal gas begins
at a pressure of
2.0 × 105 Pa, with a volume of 0.0365 m3. The
gas then goes through the following three processes, which comprise
a thermal cycle:
The gas is expanded isothermally, to twice its original
volume.
The gas is cooled isobarically, back to its original
volume.
The gas is heated isochorically, up to its original
pressure.
(a) Find the initial temperature of the gas, in
Kelvin.
(b)...

A cylinder containing an ideal gas has a volume of 2.6 m3 and a
pressure of 1.5× 105 Pa at a temperature of 300 K. The cylinder is
placed against a metal block that is maintained at 900 K and the
gas expands as the pressure remains constant until the temperature
of the gas reaches 900 K. The change in internal energy of the gas
is +6.0× 105 J. How much heat did the gas absorb?
a. 1.4E+6 J
b....

Rectangular PV Cycle
A piston contains 260 moles of an ideal monatomic gas that
initally has a pressure of 2.61 × 105 Pa and a volume of
4.9 m3. The piston is connected to a hot and cold
reservoir and the gas goes through the following quasi-static cycle
accepting energy from the hot reservoir and exhausting energy into
the cold reservoir.
1. The pressure of the gas is increased to 5.61 × 105
Pa while maintaining a constant volume.
2....

Three moles of a monatomic ideal gas are heated at a constant
volume of 2.90 m3. The amount of heat added is 5.10 103 J.
(a) What is the change in the temperature of the gas?
_____K
(b) Find the change in its internal energy.
_____J
(c) Determine the change in pressure.
_____Pa

An ideal monatomic gas is contained in a vessel of constant
volume 0.330 m3. The initial temperature and pressure of the gas
are 300 K and 5.00 atm, respectively. The goal of this problem is
to find the temperature and pressure of the gas after 24.0 kJ of
thermal energy is supplied to the gas.
(a) Use the ideal gas law and initial conditions to calculate
the number of moles of gas in the vessel. Your response differs
from the...

1A. An ideal gas at 15.0 °C and a pressure of 1.08 x
105 Pa occupies a volume of 4.20 m3.
(a) How many moles of gas are present?
(b) If the volume is raised to 6.91 m3
and the temperature raised to 29.2 °C, what will be the pressure of
the gas?
(a)
Number
Units
(b)
Number
Units
B. The chlorophyll-a molecule
(C55H72MgN4O5) is
important in photosynthesis. (a) Determine its
molecular mass (in atomic mass units). (b) What is...

A sealed container containing 3.8 mol of gas is squeezed,
changing its volume from 2.5×10−2 m3 to 1.5×10−2 m3. During this
process, the temperature decreases by 9.0 K while the pressure
increases by 800 Pa.
What was the original pressure of the gas in the container?
Express your answer using two significant figures.
What was the original temperature of the gas in the
container?

A sealed container containing 3.8 mol of gas is squeezed,
changing its volume from 2.5×10−2 m3 to 1.5×10−2 m3. During this
process, the temperature decreases by 9.0 K while the pressure
increases by 800 Pa
What was the original pressure of the gas in the container?
Express your answer using two significant figures.
What was the original temperature of the gas in the
container?

A rigid cubic container of side 0.25 m is filled with 10 moles
of the ideal gas Xenon and is then sealed so that no gas can get
out or in. The initial pressure of the gas is recorded as 2.8 x
105 Pa. You may use the following values for this
question:
Gas constant R: 8.31 J/(mol K)
Boltzmann constant kB : 1.38 x 10-23
J/K
Avogadro's number NA: 6.02 x 1023 /mol
A) Determine the total amount of...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 9 minutes ago

asked 18 minutes ago

asked 19 minutes ago

asked 26 minutes ago

asked 27 minutes ago

asked 29 minutes ago

asked 30 minutes ago

asked 32 minutes ago

asked 46 minutes ago

asked 47 minutes ago

asked 47 minutes ago

asked 54 minutes ago