2) Given that Final volume = 45% of initial volume
V2 = 0.45 V1
Therefore,
Chnage in molar entropy of the gas = R In (V2/V1)
= 8.314 J/K/mol x In (0.45 V1 /V1)
= - 6.64 J/K/mol
Please help with number 2 When an ideal gas is compressed isothermally to 45% of its...
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diagram goes with the questions below
(for Problem 7-9) On the phase diagram shown above, segment corresponds to the conditions of temperature and pressure under which the solid and the gas of the substance are in equilibrium. 1) AB 2) AC 3) AD 4) CD 5) BC On the phase diagram shown above, the coordinates of point B corresponds to the 1) critical temperature and pressure 2) critical pressure 3) critical temperature 4) boiling point 5) triple point correspond...
1.2 moles of ideal gas in a cylinder are compressed isothermally from an initial pressure of 120 kPa and a volume of 0.025 m3 to a final volume of 0.004 m3. Calculate the temperature and the final pressure of the gas; and also estimate the work done on the gas.
4. (25pts) 20L nitrogen gas is compressed in a tank at 10 bar and 25°C. Calculate the maximum work (in joules) that can be obtained when the gas is allowed to expand reversibly to a pressure of 1 bar; (a) (10pts) isothermally (b) (15pts) adiabatically The molar heat apacity of nitrogen at constant volume is 20.8 J/K mol. Assume that nitrogen behaves as an ideal gas
4. (25pts) 20L nitrogen gas is compressed in a tank at 10 bar and...
When an ideal gas at an initial volume of 'V' and pressure of 'P' is isothermally (constant temperature) compressed to V/4. What is the new pressure?
3 moles of an ideal monatomic gas are compressed reversibly and isothermally from an initial volume of 500 l at 30° C to a final volume of 50 l. Calculate: (a) the initial and final pressure of the gas, and (b) ΔQ , ΔW, ΔU, ΔΗ for the compression.
An ideal gas is compressed isothermally from 8.07 L to 6.35 L, at a starting pressure of 0.467 atm and temperature of 78.00 °C. 1. How many moles of gas are present? Tries 0/3 2. What is the final pressure (in atm) of the gas? Tries 0/3 3. If the compression is carried out reversibly and isothermally, how much work (in J) is done on the system? Tries 0/3 4. What is the heat flow in part 3? Remember that...
Please answer all three parts and show work. Thank you!
1. An ideal gas assumes molecules are point particles and do not interact with each other. In reality, molecules occupy space! To correct for this, the ideal gas equation of state is adjusted to take the volume occupied by the molecules into account for a real gas: PV = nRT or P = nRTV is modified to P = nRT/(V-nb) (IDEAL GAS) (REAL GAS Where "b" is related to the...
(1) An ideal monatomic gas expands isothermally from 0.600 m3 to 1.25 m3 at a constant temperature of 640 K. If the initial pressure is 1.01 ✕ 105 Pa find the following. (a) the work done on the gas J (b) the thermal energy transfer Q J (c) the change in the internal energy J (2) Gas in a container is at a pressure of 1.2 atm and a volume of 5.0 m3. (a) What is the work done on...
0.780 mol of an ideal gas, at 51.01 °C, is expanded isothermally from 1.94 L to 3.14 L. 1. What is the initial pressure of the gas, in atm? 1.07×101 atm You are correct. 2. What is the final pressure of the gas, in atm? 3. How much work is done on the gas, (in J), if the expansion is carried out in two steps by changing the volume irreversibly from 1.94 L to 3.14 L against a constant pressure...
A sample of n moles of a monatomic ideal gas is expanded isothermally and reversibly at a constant temperature T from a volume V to 3V. Note that since the temperature of the gas is constant, the internal energy will remain constant. a) Write an expression for the change in entropy ΔS for the system. b) The sample has 7 moles of gas and is kept at a temperature of 305 K. The volume is changed from 0.065 m3 to...