Study Question 5.3 balloon is heated very slowly, and absorbed 500 KJ of heat. It expanded...
3) As a hot air balloon is expanded, 1.45 x 185 kJ of heat is absorbed. Assume the size of the balloon grows from 1,500,000 L to 4,500,000 L against a pressure of 0.975 atm. What was the change in internal energy and enthalpy during this process? The conversion factor needed is 101.3 ) = 1.00 Leatm. (50 pts)
10) A chemist expands changes from 50 to 150 liters. He finds that 1.55 kJ of heat have been absorbed in the process. Determine the internal energy change that took place. an ideal gas against a constant external pressure of 700 mmHg, and finds its volum 10) A chemist expands changes from 50 to 150 liters. He finds that 1.55 kJ of heat have been absorbed in the process. Determine the internal energy change that took place. an ideal gas...
1. Calculate the change in internal energy ΔΕ when 15.6 kJ of heat is added to the system and 1.4 kJ of work is done to the system. 2. How much work can a bicycle pump perform when the the cylinder compresses from 3L to 2.5 L as you apply a pressure of 1.1 atm? J. A hot air baloon expands from 4,00,000L to 4.00,000L by the addion of 130,000000 of eat energy Calculate the change in energy of the...
part a. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of heat. As it expands, it does 79 kJ of work. What is the change in internal energy for the system? Express the energy in kilojoules to two significant figures. part b. When fuel is burned in a cylinder equipped with a piston, the volume expands from 0.235 L to 1.350 L against an external pressure of 1.02 atm...
Calculate the change in internal energy (ΔE) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 atm pressure. (Remember that 101.3 J = 1 L • atm)
Calculate the change in internal energy (ΔE) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 atm pressure. (Remember that 101.3 J = 1 L • atm)
Calculate the change in internal energy (ΔE) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 atm pressure. (Remember that 101.3 J = 1 L • atm)
Calculate the change in internal energy (ΔE) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 atm pressure. (Remember that 101.3 J = 1 L • atm)
Fun with a helium balloon A loosely filled balloon contains 4.5 liters of helium gas at atmospheric pressure (PA = 101 kPa) and room temperature T = 20 C. The gas in the balloon is then heated to body temperature, 37 C, by a student. (a) The pressure inside the balloon changes very little during the heating process. What is the change in the volume of the balloon? (b) How much work does the expanding balloon do on its environment?...
Calculate the change in internal energy (?E) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 atm pressure. (Remember that 101.3 J = 1 L·atm) 13) ______ A) +25.9 kJ B) 937 kJ C) -24.1 kJ D) -16.0 kJ E) -25.9 kJ