A bubble with a diameter of 1 cm at the bottom of Okeefenokee Swamp, where the t
ID: 894058 • Letter: A
Question
A bubble with a diameter of 1 cm at the bottom of Okeefenokee Swamp, where the temperature is 5 degree C and the pressure is 3 atm, rises to the surface, where the temperature is 25 degree C and the pressure is 1 atm. What will the diameter of the bubble be when it reaches the surface? A sample consisting of 1.00 mol of the molecules in air is expanded isothermally at 25 degree C from 24.2 dm^3 to 48.4 dm^3 (a) reversibly, (b) against a constant external pressure equal to the final pressure of the gas, and (c) freely (against zero external pressure). For the three processes calculate q, w, Delta U, and Delta H. In an industrial process, nitrogen is heated to 500 K at a constant volume of 1.000 m^3. The gas enters the container at 300 K and 100 atm. The mass of the gas is 92.4 kg. Use the van der Waals equation to determine the approximate pressure of the gas at its working temperature of 500 K. For nitrogen, a = 1.352 dm^6 atm mol^-2, b = 0.0387 dm^3 mol^-1. When 5.00 mol N_2 is heated at a constant pressure of 3.00 atm, its temperature increases from 298 K to 345 K. Given that the molar heat capacity of N_2 at constant pressure is 29.125 J K^-1 mol^-, calculate q, Delta H, and Delta U.Explanation / Answer
A bubble with a diameter of 1 cm at the bottom of Okeefenokee Swamp, where the t
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