A sealed cubical container 30.0 cm on a side contains three times Avogadro's number of molecules at a temperature of 25.0°C. Find the force exerted by the gas on one of the walls of the container.

An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, the air is compressed to 31.0% of its original volume and the temperature is increased to 48.0°C. (a) What is the tire pressure in pascals?(b) After the car is driven at high speed, the tire's air temperature rises to 85.0°C and the tire's interior volume increases by 3.00%. What is the new tire pressure (absolute) in pascals?

A 40.0g projectile is launched by the expansion of hot gases as shown. The cross sectional area of the launch tube is 1.0cm^2 and the length the projectile travels down the tube is 32cm. As the gas expands, the pressure and volume varies as shown. The initial pressure and volume are 11e5 Pa, and 8.0cm^3, and the final pressure and volume is 1.0e5Pa and 40.0cm^3. Friction with the launch tube is negligible. a) If the projectile is fired into vacuum, what is the speed of the projectile when it leaves the tube? b) If the projectile is launched into a room where the air pressure is 1.0e5Pa, how much energy is spent pushing the air out of the way as the projectile moves down the barrel? (Hint: What is the work exerted on the projectile by the air in the room? Also, think about which thermodynamic variable(s), describing the air in the room, you can approximate as constant.)   Answer both parts

An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, the air is compressed to 27.0% of its original volume and the temperature is increased to 39.0°C. (a) What is the tire pressure in pascals? Pa (b) After the car is driven at high speed, the tire's air temperature rises to 85.0°C and the tire's interior volume increases by 3.00%. What is the new tire pressure (absolute) in pascals? Pa