Calculate the entropy change when argon at 20°C and 1.00 bar in a container of volume 0.800 dm is allowed to expand...
A similar one: Calculate the entropy change when the same initial sample (Argon at 20°C and 1.00 bar in a container of volume 0.800 dm) is compressed to 0.0500 dm' and cooled to -20°C.
Q9 please
for propene. (ANS: -2058 kJ/mol) 9. Calculate the entropy change when argon under standard conditions in a container of volume 0.500 dm is allowed to expand to 1.000 dm' and is simultaneously heated to 100.0 °C. (ANS; +0.173 J/K) CUCU H CL The initial concentration of
Calculate the new pressure occurring when argon at 25 oC and 1.00 bar in a container of volume 0.500 L is compressed to 0.0500 L and cooled to -25 oC. Also, calculate the entropy change for this process by combining the entropy changes from isothermal and isochoric processes that move the system from the same initial point to the same final point in two stages.
¨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 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' K 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 g! The molar mass of aluminum is 26.98 g...
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. (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...
The initial temperature of a 1.00 liter sample of argon is 20. C. The pressure is decreased from 720 mmHg to 360 mmHg and the volume increases to 2.14 liters. What was the change in temperature (in C) of the argon?
of surroundings and total when 050 mol 3. Calculate the change in the entropy the system, the , of N2 gas at 298K and 1.00 bar double its volume (a) in an isothermal reversible expansion (b) in an isothermal irreversible expansion against p O (o) in an adiabatic reversible expansion
Calculate the entropy change when 72.00 g of ice, at 273.2 K and 1.000 bar pressure, is melted and then heated to 298.2 K. The enthalpy of fusion of ice is 6.009 kJ/mole and the heat molar heat capacity of water at 1.000 atm is 75.43 J/ K mole Please help! Can't figure this homework problem out.