Question

1 mole of a non-ideal gas is compressed isothermally at 100°C
from 1 bar to 50 bar. What are the heat and work needed for this
(reversible) compression if the gas conforms to the principle of
corresponding states?

The critical properties of the non-ideal gas are Tc = 406 K
and Pc = 11.3 MPa.

Answer #1

12 moles of a gas is compressed isothermally and reversibly from
400 K , 1 bar to 1/2th of its original volume. Initial
volume of the gas was measured at 120 cm^3. Using the truncated
virial EOS, calculate the required work for the compression.

1 mole methane gas (NOT ideal gas) isothermally expands from
initial pressure of 5 bar to 1bar at 50oC. Estimate the ENTROPY
change (?S) for the gas using Lee/Kesler generalized correlation
tables

One mole of an ideal gas expands reversibly and isothermally
from 10. bar to 1.0 bar at 298.15K.
(i)Calculate the values of w, q, ∆U and ∆H?
(ii)Calculate w if the gas were to have expanded to the same
final state against a constant pressure of 1 bar.

Propane gas at 100 c is compressed isothermally from an initial
pressure of 1 bar to a final pressure of 5 bar.
a. Determine the Delta H of the process
b. Determine the Delta S of the process
c. Comment on the differences between a closed and an open
system undergoing this change in terms of Q,W,H and S.

Consider the adiabatic, reversible expansion of a closed 1 mole
sample of monatomic ideal gas from P1 = 100 bar, V1 = 1dm3, and T1
= 1200K to V2 = 1.5 dm3.
What is the final temperature of the gas? What are the values of
ΔE, ΔS and w for the process described in the previous question? ΔE
= kJ ΔS = J/K w = kJ

One mole of ideal gas initially at 300 K is expanded from an
initial pressure of 10 atm to a final pressure of 1 atm. Calculate
ΔU, q, w, ΔH, and the final temperature T2 for this expansion
carried out according to each of the following paths. The heat
capacity of an ideal gas is cV=3R/2.
1. A reversible adiabatic expansion.

An insulated cylinder is filled with nitrogen gas at 25ºC and
1.00 bar. The nitrogen is then compressed adiabatically with a
constant pressure of 5.00 bar until equilibrium is reached. i. What
is the final temperature of the nitrogen if it is treated as an
ideal gas with molar heat capacity CP = 7/2 R ?
ii. Calculate ΔH (in kJ mol-1 ) and ΔS (in J mol-1 K-1 ) for the
compression. (Hint: Because the enthalpy is a state...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 46 seconds ago

asked 46 seconds ago

asked 1 minute ago

asked 1 minute ago

asked 2 minutes ago

asked 4 minutes ago

asked 4 minutes ago

asked 4 minutes ago

asked 5 minutes ago

asked 6 minutes ago

asked 7 minutes ago

asked 7 minutes ago