Question

3 kg of a monatomic ideal gas (mass number 278), is slowly changed from pressure 36.4 atm and volume 973 liters to pressure 49.6 atm and volume 606 liters. The P-V diagram for this process is a straight line. Find the total work done by the system, in KJ. A positive answer means work is done by the system; a negative answer means work is done on the system.

Answer #1

(1) pressure volume diagram of the problem is shown as;

conversion factors:

1 atm = 101325 pa;

1 L = 0.001 m^3;

.................................................................

pressure and volume at state (1);

pressure and volume at state (2);

Workdone for the process (1-2) = Area under the PV diagram;

**Negative sign shows work is done on the
system.**

A flask contains 90.7 moles of a monatomic ideal gas at pressure
5.64 atm and volume 40.1 liters (point A on the graph. Now, the gas
undergoes a cycle of three steps:
- First there is an isothermal expansion to pressure 3.79 atm
(point B on the graph).
- Next, there is an isochoric process in which the pressure is
raised to P1 (point C on the graph).
- Finally, there is an isobaric compression back to the original
state...

A flask contains 99 moles of a monatomic ideal gas at pressure
6.79 atm and volume 29.3 liters (point A on the graph. Now, the gas
undergoes a cycle of three steps:
- First there is an isothermal expansion to pressure 3.71 atm
(point B on the graph).
- Next, there is an isochoric process in which the pressure is
raised to P1 (point C on the graph).
- Finally, there is an isobaric compression back to the original
state...

1. A flask holds 9.73 kg of a monatomic ideal gas (mass number
86.4). If the gas changes temperature isochorically (constant
volume) from temperature 802o C to 376o C,
find the change in the internal energy of the gas, in kJ. A
positive answer means the internal energy increased; a negative
answer means the internal energy decreased.
2. A flask holds 2.25 kg of a diatomic ideal gas (mass number of
the gas 92.1). If the gas changes temperature isochorically...

A two mole sample of an ideal diatomic gas expands
slowly and adiabatically from a pressure of 5 atm. and a volume of
10 liters up to a final volume of 30 liters.
a) What is the final pressure of the gas ?,
b) Whatis the heat, work and internal energy?

A 59.1 liter container holds 8.74 kg of a diatomic ideal gas
(mass number of the gas 973) at 958 degrees Celcius. If a piston
changes the volume of the gas isothermally to 209 liter, how much
heat added or removed during this process, in kJ?
A positive answer means heat is added; a negative answer means
heat was removed.

A mole of a monatomic ideal gas is taken from an initial
pressure p and volume V to a final pressure 3p and volume 3V by two
different processes: (I) It expands isothermally until its volume
is tripled, and then its pressure is increased at constant volume
to the final pressure. (II) It is compressed isothermally until its
pressure is tripled, and then its volume is increased at constant
pressure to the final volume. Show the path of each process...

A cylinder of monatomic ideal gas is sealed in a cylinder by a
piston. Initially, the gas occupies a volume of 3.00 L and the
pressure is initially 105 kPa. The cylinder is placed in an oven
that maintains the temperature at a constant value. 65.0 J of work
is then done on the piston, compressing the gas (in other words,
the gas does −65.0 J of work). The work is done very slowly so that
the gas maintains a...

Consider the following four-process cycle that is carried out on
a system of monatomic ideal gas, starting from state 1 in which the
pressure is 88.0 kPa and the volume is 3.00 liters.
Process A is an isothermal process that triples the
volume;
process B is a constant volume process that returns the system to a
pressure of 88.0 kPa;
process C is an isothermal process that returns the system to a
volume of 3.00 liters;
and process D is...

4. Three moles of a monatomic ideal gas are initially at a
pressure of 1.00 atm and a temperature of 20.0OC. The gas is
compressed adiabatically to a final pressure of 5.00 atm. Find: (a)
the initial volume of the gas; (b) the final volume of the gas; (c)
the final temperature of the gas; (d) the work done by the gas
during the compression.
Answers: (a) 72.1 L; (b) 27.5 L; (c) 285 OC; (d) -97.8
atm-L
Please show...

In this problem, 0.90 mole of a monatomic ideal gas is initially
at 285 K and 1 atm.
(a) What is its initial internal energy?
_____ kJ
(b) Find its final internal energy and the work done by the gas
when 420 J of heat are added at constant pressure.
final internal energy ________kJ
work done by the gas _______kJ
(c) Find the same quantities when 420 J of heat are added at
constant volume.
finale internal energy ________kJ
work...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 3 minutes ago

asked 5 minutes ago

asked 6 minutes ago

asked 10 minutes ago

asked 13 minutes ago

asked 14 minutes ago

asked 15 minutes ago

asked 16 minutes ago

asked 24 minutes ago

asked 26 minutes ago

asked 35 minutes ago

asked 1 hour ago