I need a little help please. These problems are killling me! -_-"
1: A tire is filled with air at 15°C to a gauge pressure of 235 kPa. If the tire reaches a temperature of 35°C, what fraction of the original air must be removed if the original pressure of 235 kPa is to be maintained?
2.A child's helium-filled balloon escapes at sea level and 20.0°C. It reaches an altitude of 3110 m, where the temperature is 5.0°C and the pressure only 0.65 atm. What is the ratio of its volume at this altitude to its volume at sea level?
3. I know how to find the average translational kinetic energy in Part A but I dont know how to get the total translational kinetic energy in part B.
(a) What is the average translational kinetic energy of a nitrogen molecule at STP?
5.65 * 10^-21 J
(b) What is the total translational kinetic energy of 4.00 mol of N2 molecules at 10°C?
J
Steps and Explanations would be nice [: Thank You!
1: A tire is filled with air at 15°C to a gauge pressure of 235 kPa. If the tire reaches a temperature of 35°C, what fraction of the original air must be removed if the original pressure of 235 kPa is to be maintained?
2.A child's helium-filled balloon escapes at sea level and 20.0°C. It reaches an altitude of 3110 m, where the temperature is 5.0°C and the pressure only 0.65 atm. What is the ratio of its volume at this altitude to its volume at sea level?
3. I know how to find the average translational kinetic energy in Part A but I dont know how to get the total translational kinetic energy in part B.
(a) What is the average translational kinetic energy of a nitrogen molecule at STP?
5.65 * 10^-21 J
(b) What is the total translational kinetic energy of 4.00 mol of N2 molecules at 10°C?
J
Steps and Explanations would be nice [: Thank You!