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22 g of Co, gas is in a container under 1.50 bar. After isothermal reversible expansion,...
An ideal gas undergoes a reversible isothermal expansion at 57.0 degree C, increasing it's volume from 1.50 L to4.50 L. The entropy change of the gas is 36.0 J/K. How many moles of gas are present?
640 g of oxygen gas, O2, ondergo reversible isothermal expansion at 35°C from a volume of 2.4 to 17.3 m. Assuming ideal gas behaviour, what is the total work performed by the gas? A particular reaction has a standard molar reaction enthalpy of -4362 kJ mol" and a standard molar reaction entropy of +21.6 J K-1 mol- both at 298 K. What is the thermodynamic equilibrium constant for the reaction at 298 K? (Note, rounding errors will have a profound...
In an isothermal reversible expansion at 23°C, an ideal gas does 55 J of work. What is the entropy change of the gas (in J/K)?
Assume there's 1 mol ideal mono-atomic gas in a 22.4L container
at 300K. The initial entropy of the system is 100J/K. For the
following processes, calculate:
a) q and w for a reversible expansion to twice the volume,
isothermally.
b)
S and
G for irreversible isothermal expansion against a constant 0.5 bar
external pressure, to a final internal pressure of 0.5 bar.
c)
U and
H for adiabatic reversible expansion to twice the volume.
A gas sample undergoes a reversible isothermal expansion. The figure gives the change AS in entropy of the gas versus the final volume Vf of the gas. The scale of the vertical axis is set by ΔSs = 73.7 J/K. How many moles are in the sample? 0.8 1.6 2.4 3.2 4.0 Vy (m3)
20 mol of carbon dioxide gas initially at 50°C and 55 bar en reversible isothermal process to a final pressure of 5 bat. for the process. Use an appropriate generalized correlation properties of CO2. Note that CO, is not an ideal gas under these 55 bar expands by a mechanically 5 bar. Calculate the heat required ized correlation for the thermodynamic
Consider 2.0 moles of N2 gas that undergo a reversible isothermal expansion at 250 K from 3.0 L to 5.0 L. Assume that the gas can be treated as ideal and that it has CV = 5R/2 and a molar mass of 28.01 g/mol. (a). (12 points) Calculate, in kJ/mol, the work, heat, internal energy change, and enthalpy change for the gas. Be sure to show all of your work, including units.
During a reversible isothermal expansion, the entropy of an ideal gas: a) decreases b) stays constant c) increases When dry ice sublimes into gas at 194.65 K and 1 atm, the entropy a) increases b) stays constant c) decreases Which one of the following is true? a) The entropy of an isolated system can only stay constant or increase during a process b) We can construct a heat engine that extracts heat from a hot reservoir and delivers an equal...
Carbon Oxide (CO) initially occupying 1.7 m3 at 8 bar, 246.85°C undergoes an internally reversible expansion during which pV1.3 = constant to a final state where the temperature is 36.85°C. Assuming the ideal gas model, determine the entropy change, in Joules/K.
Initially, at a temperature T, and a molar volume vi, a van der Waals gas undergoes a change of state to the final temperature T2 and the molar volume V2. The van der Waals gas is characterized by the two parameters a and b (cf. Eq. (3.3)). a. Show that the change in molar entropy is As = c, In 72 + R In º2 = (3.62) 01 - 6 b. A volume of 1 dm is partitioned by a...