Review. The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.0°C and 101 kPa. The volume of the balloon is 400 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.0°C is 1.244 kg/m3.)

Review. The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.0°C and 101 kPa. The volume of the balloon is 400 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.0°C is 1.244 kg/m3.)

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter10: Thermal Physics

Section: Chapter Questions

Problem 7WUE: One way to cool a gas is to let it expand. When a certain gas under a pressure of 5.00 106 Ha at...

See similar textbooks

Similar questions

One way to cool a gas is to let it expand. When a certain gas under a pressure of 5.00 106 Ha at 25.0C is allowed to expand to 3.00 times its original volume, its final pressure is 1.07 106 Pa. (a) What is the initial temperature of the gas in Kelvin? (b) What is the final temperature of the system? (See Section 10.4.)
The mass of a hot-air balloon and its cargo (not including the air inside) is 180 kg. The air outside is at 10.0°C and 101 kPa. The volume of the balloon is 520 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.0°C is 1.244 kg/m3.) K
The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.0°C and 101 kPa. The volume of the balloon is 400 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.0°C is 1.244 kg/m3.)
A weather balloon filled with helium gas has a volume of 300 m³ and pressure 1.4 x 105Pa at the Earth's surface (where the temperature is 293 K). The balloon is then released and moves to a high altitude, where the pressure in the balloon is 8.95 x 10*Pa and the temperature is 250 K (-23°C). What is the new volume of the balloon? A-V= 100 m³, B- V= 163.7 m³ C-V= 184 m³, D- V= 197m3, E-V = 400 m³, A В D O E
A hot-air balloon has a volume of 1100 m³. The density of air at 20 ⁰C is 1.205 kg/m³. The density of hot air inside the balloon at a temperature of 100 ⁰C is 0.946 kg/m³. How much weight can the hot-air balloon lift (including the balloon itself)?
A weather balloon contains 12.0 m³ of hydrogen gas when the balloon is released from a location at which the temperature is 30.0°C and the pressure is 80.0 kPa. The balloon rises to a location where the temperature is -10.0°C and the pressure is 20.0 kPa. If the balloon is free to expand so that the pressure of the gas inside is equal to the ambient pressure, what is the new volume of the balloon? Assume that in both cases the hydrogen gas is in thermal equilibrium with the outside air. O 14.0 m³ 4.16 m³ 16.0 m³ 41.7 m³ 2.38 m³
17. A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.034 m³ of helium at an absolute pressure of 1.2 X 10$ Pa. The cylinder contains helium at an absolute pressure of 1.6 × 107 Pa and has a volume of 0.0031 m². The temperature of the helium in the tank and in the balloons is the same and remains constant. What is the maximum number of balloons that can be filled?
A car tire has an inner radius of 45.46 cm has a low pressure of 195 kPa. The tire is recommended to be inflated to 248 kPa. At the low pressure the tire outer radius is 56.65 cm and fully inflated is 67.81 cm. The outside temperature is 17 0C. What is the mass of the air to inflate the tire? How many air molecules are added to properly inflate the tire?
A hot air balloon holds 7.40 x 107 liters of gas. In order for the hot air balloon to rise into the sky, it must be heated to 120°C. Once the balloon is up in the air, the air needs to be cooled in order for the balloon to land. If the temperature of the balloon is decreased to 40.0°C, what will the new volume of the gas be? SOMEONE PLEASE HELP ME!!
A Styrofoam ice box has a total area of 0.950 m² and walls with an average thickness of 2.50 cm. The box contains ice, water, and canned beverages at 0°C. The inside of the box is kept cold by melting ice. How much ice melts in one day if the ice box is kept in the trunk of a car at 35.0°C?
A sealed container has a volume of 0.012 m3 and contains 26.5 g of molecular nitrogen (N2), which has a molecular mass of 28.0 u. The gas is at 157 °C. What is the absolute pressure of the nitrogen gas, in kilopascals? 1 u = 1.67 x 10-27 kg.
33. A bicycle tire has a pressure of 7.00 × 10° N/m² at a temperature of 18.0°C and contains 2.00 L of gas. What will its pressure be if you let out an amount of air that has a volume of 100 cm³ at atmospheric pressure? Assume tire temperature and volume remain constant.