Questions from College Physics

Q: One mole of oxygen gas is at a pressure of 6.

One mole of oxygen gas is at a pressure of 6.00 atm and a temperature of 27.0°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature? (b) If the gas i...

Q: A 75-kg sprinter accelerates from rest to a speed of

A 75-kg sprinter accelerates from rest to a speed of 11.0 m/s in 5.0 s. (a) Calculate the mechanical work done by the sprinter during this time. (b) Calculate the average power the sprinter must gener...

Q: A container holds 0.500 m3 of oxygen at an absolute

A container holds 0.500 m3 of oxygen at an absolute pressure of 4.00 atm. A valve is opened, allowing the gas to drive a piston, increasing the volume of the gas until the pressure drops to 1.00 atm....

Q: (a) An ideal gas occupies a volume of 1.

(a) An ideal gas occupies a volume of 1.0 cm3 at 20.°C and atmospheric pressure. Determine the number of molecules of gas in the container. (b) If the pressure of the 1.0-cm3 volume is reduced to 1.0...

Q: An automobile tire is inflated with air originally at 10.0

An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, the air is compressed to 28.0% of its original volume and the temperature is increased...

Q: Gas is confined in a tank at a pressure of 11.

Gas is confined in a tank at a pressure of 11.0 atm and a temperature of 25.0°C. If two-thirds of the gas is withdrawn and the temperature is raised to 75.0°C, what is the new pressure of the gas rema...

Q: Gas is contained in an 8.00-L vessel at

Gas is contained in an 8.00-L vessel at a temperature of 20.0°C and a pressure of 9.00 atm. (a) Determine the number of moles of gas in the vessel. (b) How many molecules are in the vessel?

Q: A weather balloon is designed to expand to a maximum radius of

A weather balloon is designed to expand to a maximum radius of 20 m at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. If the balloon is filled at atmospheric p...

Q: The density of helium gas at 0°C is p0 =

The density of helium gas at 0°C is p0 = 0.179 kg/m3. The temperature is then raised to T = 100°C, but the pressure is kept constant. Assuming the helium is an ideal gas, calculate the new density pf...

Q: An air bubble has a volume of 1.50 cm3 when

An air bubble has a volume of 1.50 cm3 when it is released by a submarine 1.00 x 102 m below the surface of a lake. What is the volume of the bubble when it reaches the surface? Assume the temperature...