Entropy of the system will be decreased from initial value to final value by 12.55 J/K.
The detail calculation is shown below.
5. Calculate the change in entropy of an ideal gas when 2.00 moles of it is...
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.
2.00 mol diatomic perfect gas molecules, for which Cp = 7/2R, is changed from 25°C and 1.50 atm to 135°C and 7.00 atm. Without doing any calculations, is the change in temperature or the change in pressure more important in determining the overall change in entropy (of the system)? Why? What can you conclude about the sign of ΔSsys . Calculate ΔSsys for the change.
Calculate the change in entropy (in J/K) that occurs when a sample containing 2.00 moles of water is heated from 80.00 °C to 110.0 °C at 1 atm pressure. Molar Heat Capacity H20(I) = 75.3 JK' molt H20(9) = 36.4 JK' moi Enthalpy of Vaporization at 100 °C = 40.7 kJ moi? -1 Answer:
Calculate the change in entropy (in J/K) that occurs when a sample containing 2.00 moles of water is heated from 10.00°C to 300.0 °C at 1 atm pressure. Molar Heat Capacity H2O(1) = 75.3 JK' moi? H2O(g) = 36.4 JK' mol Enthalpy of Vaporization at 100 °C = 40.7 kJ mol .-1 -1 Answer:
¨Calculate the entropy change when 2 moles of an ideal gas are allowed to expand isothermally from an initial volume of 1.5 L to 2.4 L. Then estimate the probability that the gas will contract spontaneously from the final volume to the initial one.
Calculate the change in entropy for 5 moles of carbon dioxide gas as it is compressed isothermally from 20L to 5L at a temperature of 300K. Consider CO 2 is an (a) ideal gas (b) Van der Waals gas
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...
Calculate the change in entropy for 80 grams of ammonia gas (consider ideal gas) as it expands from a pressure of 4 atm and 60C to a pressure of 10 atm and 100C. Consider the following (a) constant Cp (b) Cp as a function of Temperature
8. 2.00 moles of ideal gas at 3.50 bar and 330 K are expanded isothermally. The entropy of the system is found to increase by 25.0 JK-I. a) Calculate the final pressure and volume of the system. b) Calculate AG for this process.
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...