In: Chemistry

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.

Suppose 1.0 mol of an ideal gas is initially at P=4.0
atm and T=400 K. It is expanded irreversibly and adiabatically
against a constant pressure of 1.0 atm until the volume has
doubled.
(a) Calculate the final volume of the gas.
(b) Calculate w, q, and energy change ΔU of this process, in
joules.
(c) Calculate the final temperature of the gas.
(d) Calculate the entropy change ΔS of the ideal gas in the
process.
(e) What is the entropy...

The temperature of 2.00 mol of an ideal monatomic gas is raised
15.0 K at constant volume. What are (a) the work W done by the gas,
(b) the energy transferred as heat Q , (c) the change
?Eint in the internal energy of the gas, and (d) the
change ?K in the average kinetic energy per atom

The pressure on a sample of an ideal gas is increased from 715 mmHg to 3.55 atm at constant temperature. If the initial volume of the as is 472 mL. what is the final volume of the gas?
A 4.00 L sample of gas is cooled from 71 CC to a temperature at which its volume is 2.60 L. What is this new temperature? Assume no change in pressure of the gas.
A scuba diver releases a...

3 moles of an ideal gas with 2 atoms under 308 K temperature and
5 atm are expanded reversible to 1 atm end pressure. Calculate w,
q, ΔU, ΔH values in case of expansion of this expansion by
isothermal and adiabatic way.

1. A sample of nitrogen gas at a pressure of 0.947 atm and a
temperature of 213 °C, occupies a volume of 687 mL. If the gas is
cooled at constant pressure until its volume is 570 mL, the
temperature of the gas sample will be 2. A helium-filled weather
balloon has a volume of 615 L at 23 °C and 754 mm Hg. It is
released and rises to an altitude of 7.93 km, where the pressure is
323...

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

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.

A sample of an ideal gas at 1.00 atm and a volume of 1.02 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 45.0 atm,
what was the volume of the sample? Assume that the temperature was
held constant.

Gas is confined in a tank at a pressure of 11.5 atm and a
temperature of 22.0°C. If two-thirds of the gas is withdrawn and
the temperature is raised to 60.0°C, what is the pressure of the
gas remaining in the tank?

15 mol /h of stream 1 (gas, at 1.1 atm and 0°C) containing 25%
(mol basis) propane and rest butane is mixed with a second stream
(gas, at 1.1 atm and 70°C) containing 40% (mol basis) propane and
rest butane. The output stream is 40 mol/h (gas, at 1.1 atm). The
relative enthalpies as a function of temperature (T is in °C) are H
(J/mol) for propane= 91*T H (J/mol) for butane= 121*T a) What is
the composition of the...

ADVERTISEMENT

ADVERTISEMENT

Latest Questions

- Does a non-controlling shareholder have access to any information other than the consolidated financial statements to...
- 11.A computer manufacturer estimates that its cheapest screens will last less than 2.8 years. A random...
- 3.For variables measured at the nominal level, what values can the measures of association take on?...
- Briefly discuss how does the incorporation of aggregates influence strength of cement basis materials (hint explain...
- Accounting Theory Question Case 8- 10 Accounting for Prepaids and Deferrals Short term deferrals (prepaid and...
- Pearl Products Limited of Shenzhen, China, manufactures and distributes toys throughout South East Asia. Three cubic...
- IRAC: Ariel, Sebastian, Flounder and Eric each own 20% of the outstanding shares of the common...

ADVERTISEMENT