In: Chemistry

Use the ideal gas law to complete the table:

P |
V |
n |
T |

1.06 atm | 1.25 L | 0.105 mol | ___ |

115 torr | ___ | 0.249 mol | 309 K |

___ | 28.2 mL | 1.81×10^{−3} mol |
26.0 ∘C |

0.565 atm | 0.440 L | ___ | 257 K |

For an ideal gas, consider the molar volume Vm = (V/n) =
Vm(T,P). In other words, the molar volume is a function of
temperature and pressure.
a) Write the total differential dVm.
b) Show that dVm is exact.
c) Derive an expression for the differential work dw performed
in a reversible process by expansion/compression of the gas.
d) Show that dw is inexact.
e) What is the thermodynamic significance of having an exact
differential?

For 1 mol of an ideal gas, Pexternal = P = 1 atm. The
temperature is changed from 125ºC to 25.0ºC, and CV,m = 3/2R.
Calculate (all units are J) q= , w= , ∆U= , and ∆H= . Please enter
your answers with 2 decimals in E notation, such as 2.33E4
(=23345). If the answer is negative, please do not forget the
negative sign. If answer is zero, please just enter 0 without
decimal.

Two moles of an ideal gas originally at T = 400 K and
V = 40 L undergo a free expansion;
?2 = 10?1
. Find (a) the entropy change of the gas, and (b) the entropy
change of the universe?

One mole of an ideal gas in an initial state P = 10atm, V = 5L,
is taken reversibly in aclockwise direction around a circular path
given by (V − 10)^2 + (P − 10)^2 = 25. Computethe amount of work
done by the gas and the change in internal energy.

What is the ideal gas law constant?please give details.

For
the ideal gas law to be most applicable, it is best for the gas to
exist at?

Ideal gas is expanded keeping (a) P V 2=const, (b) P
2V =const. Do these processes lead to temperature
increase or to temperature decrease? Find the specific heat
capacities for the gas during these processes.

Complete the following table for H2O. Use data from
the steam tables.
T, °F
P, psia
u, Btu/lbm
Phase description
300
782
(Click to
select) Compressed liquid Saturated
mixture Saturated liquid Superheated
vapor
40
Saturated liquid
500
120
(Click to
select) Saturated mixture Superheated
vapor Compressed liquid Saturated liquid
400
400
(Click to
select) Superheated vapor Saturated
liquid Compressed liquid Saturated
mixture

What is an ideal gas law? How did scientist arrive at the
present day ideal gas equation. (Hint: explain different gas laws
and how you come to ideal gas law equation using all the laws)

A sample of an ideal gas at 1.00 atm and a volume of 1.46 L was
placed in a weighted balloon and dropped into the ocean. As the
sample descended, the water pressure compressed the balloon and
reduced its volume. When the pressure had increased to 10.0 atm,
what was the volume of the sample? Assume that the temperature was
held constant.

ADVERTISEMENT

ADVERTISEMENT

Latest Questions

- Super Speed Motor Co. assembles motors of sport cars. It jobs costing system has two direct...
- Segregation of duties Fluffy Dogs Inc., is a small company with three people working in the...
- 1. Can one use energy conservation with electricity concepts? 2. What is the difference between potential...
- Mary Wells Lawrence once said, “In this business, you can never wash the dinner dishes and...
- “Legislation is drawn up by draftsmen, and a draftsman’s capacity to anticipate the future is limited....
- A stock's returns have the following distribution: Demand for the Company's Products Probability of This Demand...
- Tommy plans to retire in 25 years (1st withdrawal in year 26). He is told by...

ADVERTISEMENT