Calculate the change in entropy ΔS for 5.2 moles of an ideal gas when its thermodynamic...
Calculate the change in entropy ΔS for 5.2 moles of an ideal gas when its thermodynamic state changes from p1 = 1.50 atm and T1 = 400.0 K to p2 = 3.00 atm and T2 = 600.0 K. The molar heat capacity of the gas at constant volume is CV,m = (7/2) R, and is independent of the temperature.
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Calculate the change in entropy ΔS for 5.2 moles of an ideal gas
when its thermodynamic...
5. Calculate the change in entropy of an ideal gas when 2.00 moles of it is...
5. Calculate the change in entropy of an ideal gas when 2.00 moles of it is changed from 25 °C and 1.50 atm to 135 °C and 7.00 atm. You may assume that Cp.m=5/2 R. (10 pts) J/K
Physical Chemistry Calculate the change in entropy when one mole of metallic aluminum is heated at...
Physical Chemistry
Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol K1 and 31.75 J mol K, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 J g1. The molar mass of aluminum is...
4. You are asked to perform thermodynamic analysis for a real gas that obeys the following...
4. You are asked to perform thermodynamic analysis for a real gas that obeys the following equation of state: aP where "a" and "b" are constants (the numerical value of these constants is not important for this problem). You also know that the real gas has the following molar heat capacity, which you can assume depends only on the temperature: Cpm = A + BT with T in kelvin. Also, 2aPaP2 Note that, since the gas is real, the relationship...
Thermodynamics COURSE Using the appropriate tables, determine the change in specific entropy between the specified states,...
Thermodynamics COURSE Using the appropriate tables, determine the change in specific entropy between the specified states, in Btu/lb · °R. (a) water, p1 = 10 lbf/in.2, saturated vapor; p2 = 500 lbf/in.2, T2 = 1300°F. (b) ammonia, p1 = 140 lbf/in.2, T1 = 160°F; T2 = -10°F, h2 = 345 Btu/lb. (c) air as an ideal gas, T1 = 80°F, p1 = 1 atm; T2 = 340°F, p = 5 atm. (d) oxygen as an ideal gas, T1 = T2...
6. Calculate the entropy change when 2 moles of gaseous water are formed at 100°C and 1 atm from hydrogen and oxygen ga...
6. Calculate the entropy change when 2 moles of gaseous water are formed at 100°C and 1 atm from hydrogen and oxygen gas at the same temperature. H2(g) = 130.57 J/K Standard molar entropy: H2O(g) = 188.72 J/K O2(g) = 205.04 J/K Constant volume molar heat capacity: H2O(g) = 25.3 J/ K O 2(g) = 21.1 J/K Constant pressure molar heat capacity: H2O(g) = 33.6 J/K O2(g) = 29.4 JK H2(g) = 20.5 JK H2(g) = 28.8 J/K
10 moles of an ideal gas expands irreversibly against an unknown constant external pres- sure, Pert,...
10 moles of an ideal gas expands irreversibly against an unknown constant external pres- sure, Pert, from an initial volume Vİ-1 L to a final volume ½ 11 L. In the process, the temperature of the gas falls from T350 K to T2 250 K, and it absorbs heat q+7 L atm from the surroundings. (a) What is the external pressure, Pert (in atm)? [Note: this is an ideal gas, so its internal energy depends only on its temperature.] (b)...
Using the appropriate tables, determine the change in specific entropy between the specified states, in Btu/lb...
Using the appropriate tables, determine the change in specific entropy between the specified states, in Btu/lb · °R. oxygen as an ideal gas, T1 = T2 = 520°R, p1 = 10 atm, p2 = 5 atm.
a cylinder contains 10 moles of an ideal gas at a temperature of 300 K. The...
a cylinder contains 10 moles of an ideal gas at a temperature of 300 K. The gas is compressed at constant pressure until the final volume equals 0.77 times the initial volume. The molar heat capacity at constant volume of the gas is 24.0 j/mol. What is the heat absorbed by the gas in kJ
3,1 moles of an ideal gas with a molar heat capacity at constant volume of 5,1...
3,1 moles of an ideal gas with a molar heat capacity at constant volume of 5,1 cal/(mol∙K) and a molar heat capacity at constant pressure of 7,7 cal/(mol∙K) starts at 317,6 K and is heated at constant pressure to 335,9 K, then cooled at constant volume to its original temperature. How much heat (cal) flows into the gas during this two-step process? Answer in two decimal places.
A sample of n moles of a monatomic ideal gas is expanded isothermally and reversibly at...
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...
5. Calculate the change in entropy of an ideal gas when 2.00 moles of it is changed from 25 °C and 1.50 atm to 135 °C and 7.00 atm. You may assume that Cp.m=5/2 R. (10 pts) J/K
Physical Chemistry
Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol K1 and 31.75 J mol K, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 J g1. The molar mass of aluminum is...
4. You are asked to perform thermodynamic analysis for a real gas that obeys the following equation of state: aP where "a" and "b" are constants (the numerical value of these constants is not important for this problem). You also know that the real gas has the following molar heat capacity, which you can assume depends only on the temperature: Cpm = A + BT with T in kelvin. Also, 2aPaP2 Note that, since the gas is real, the relationship...
6. Calculate the entropy change when 2 moles of gaseous water are formed at 100°C and 1 atm from hydrogen and oxygen gas at the same temperature. H2(g) = 130.57 J/K Standard molar entropy: H2O(g) = 188.72 J/K O2(g) = 205.04 J/K Constant volume molar heat capacity: H2O(g) = 25.3 J/ K O 2(g) = 21.1 J/K Constant pressure molar heat capacity: H2O(g) = 33.6 J/K O2(g) = 29.4 JK H2(g) = 20.5 JK H2(g) = 28.8 J/K
10 moles of an ideal gas expands irreversibly against an unknown constant external pres- sure, Pert, from an initial volume Vİ-1 L to a final volume ½ 11 L. In the process, the temperature of the gas falls from T350 K to T2 250 K, and it absorbs heat q+7 L atm from the surroundings. (a) What is the external pressure, Pert (in atm)? [Note: this is an ideal gas, so its internal energy depends only on its temperature.] (b)...
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