Problem 21.1QQ: Two containers hold an ideal gas at the same temperature and pressure. Both containers hold the same... Problem 21.2QQ: (i) How does the internal energy of an ideal gas change as it follows path i f in Figure 20.4? (a)... Problem 21.3QQ Problem 21.4QQ Problem 21.1OQ: Cylinder A contains oxygen (O2) gas, and cylinder B contains nitrogen (N2) gas. If the molecules in... Problem 21.2OQ: An ideal gas is maintained at constant pressure. If the temperature of the gas is increased from 200... Problem 21.3OQ Problem 21.4OQ: A helium-filled latex balloon initially at room temperature is placed in a freezer. The latex... Problem 21.5OQ Problem 21.6OQ Problem 21.7OQ: A sample of gas with a thermometer immersed in the gas is held over a hot plate. A student is asked... Problem 21.8OQ Problem 21.9OQ: Which of the assumptions below is not made in the kinetic theory of gases? (a) The number of... Problem 21.1CQ: Hot air rises, so why does it generally become cooler as you climb a mountain? Note: Air has low... Problem 21.2CQ Problem 21.3CQ: When alcohol is rubbed on your body, it lowers skin temperature. Explain this effect. Problem 21.4CQ: What happens to a helium-filled latex balloon released into the air? Does it expand or contract?... Problem 21.5CQ: Which is denser, dry air or air saturated with water vapor? Explain. Problem 21.6CQ: One container is filled with helium gas and another with argon gas. Both containers are at the same... Problem 21.7CQ: Daltons law of partial pressures states that the total pressure of a mixture of gases is equal to... Problem 21.1P: (a) How many atoms of helium gas fill a spherical balloon of diameter 30.0 cm at 20.0C and 1.00 atm?... Problem 21.2P: A cylinder contains a mixture of helium and argon gas in equilibrium at 150C. (a) What is the... Problem 21.3P Problem 21.4P: In an ultrahigh vacuum system (with typical pressures lower than 10-7 pascal), the pressure is... Problem 21.5P: A spherical balloon of volume 4.00 103 cm3 contains helium at a pressure of 1.20 105 Pa. How many... Problem 21.6P: A spherical balloon of volume V contains helium at a pressure P. How many moles of helium are in the... Problem 21.7P: A 2.00-mol sample of oxygen gas is confined to a 5.00-L vessel at a pressure of 8.00 atm. Find the... Problem 21.8P: Oxygen, modeled as an ideal gas, is in a container and has a temperature of 77.0C. What is the... Problem 21.9P Problem 21.10P: The rms speed of an oxygen molecule (O2) in a container of oxygen gas is 625 m/s. What is the... Problem 21.11P: A 5.00-L vessel contains nitrogen gas at 27.0C and 3.00 atm. Find (a) the total translational... Problem 21.12P: A 7.00-L vessel contains 3.50 moles of gas at a pressure of 1.60 106 Pa. Find (a) the temperature... Problem 21.13P: In a period of 1.00 s, 5.00 1023 nitrogen molecules strike a wall with an area of 8.00 cm2. Assume... Problem 21.14P: In a constant-volume process, 209 J of energy is transferred by heat to 1.00 mol of an ideal... Problem 21.15P: A sample of a diatomic ideal gas has pressure P and volume V. When the gas is warmed, its pressure... Problem 21.16P: Review. A house has well-insulated walls. It contains a volume of 100 m3 of air at 300 K. (a)... Problem 21.17P: A 1.00-mol sample of hydrogen gas is healed at constant pressure from 300 K to 420 K. Calculate (a)... Problem 21.18P: A vertical cylinder with a heavy piston contains air at 300 k. The initial pressure is 2.00 105 Pa,... Problem 21.19P: Calculate the change in internal energy of 3.00 mol of helium gas when its temperature is increased... Problem 21.20P: A 1.00-L insulated bottle is full of tea at 90.0C. You pour out one cup of tea and immediately screw... Problem 21.21P: Review. This problem is a continuation of Problem 39 in Chapter 19. A hot-air balloon consists of an... Problem 21.22P: A certain molecule has f degrees of freedom. Show that an ideal gas consisting of such molecules has... Problem 21.23P: In a crude model (Fig. P21.23) of a rotating diatomic chlorine molecule (Cl2), the two Cl atoms are... Problem 21.24P: Why is the following situation impossible? A team of researchers discovers a new gas, which has a... Problem 21.25P Problem 21.26P: A 2.00-mol sample of a diatomic ideal gas expands slowly and adiabatically from a pressure of 5.00... Problem 21.27P: During the compression stroke of a certain gasoline engine, the pressure increases from 1.00 atm to... Problem 21.28P: How much work is required to compress 5.00 mol of air at 20.0C and 1.00 atm to one-tenth of the... Problem 21.29P: Air in a thundercloud expands as it rises. If its initial temperature is 300 K and no energy is lost... Problem 21.30P: Why is the following situation impossible? A new diesel engine that increases fuel economy over... Problem 21.31P: During the power stroke in a four-stroke automobile engine, the piston is forced down as the mixture... Problem 21.32P: Air (a diatomic ideal gas) at 27.0C and atmospheric pressure is drawn into a bicycle pump that has a... Problem 21.33P: A 4.00-L sample of a diatomic ideal gas with specific heat ratio 1.40, confined to a cylinder, is... Problem 21.34P Problem 21.35P Problem 21.36P: Fifteen identical particles have various speeds: one has a speed of 2.00 m/s, two have speeds of... Problem 21.37P Problem 21.38P Problem 21.39P Problem 21.40P: Consider a container of nitrogen gas molecules at 900 K. Calculate (a) the most probable speed, (b)... Problem 21.41P Problem 21.42P Problem 21.43P: The law of atmospheres states that the number density of molecules in the atmosphere depends on... Problem 21.44AP Problem 21.45AP Problem 21.46AP: The dimensions of a classroom are 4.20 m 3.00 m 2.50 m. (a) Find the number of molecules of air in... Problem 21.47AP: The Earths atmosphere consists primarily of oxygen (21%) 30 and nitrogen (78%). The rms speed of... Problem 21.48AP Problem 21.49AP: An air rifle shoots a lead pellet by allowing high pressure air to expand, propelling the pellet... Problem 21.50AP Problem 21.51AP: A certain ideal gas has a molar specific heat of Cv = 72R. A 2.00-mol sample of the gas always... Problem 21.52AP Problem 21.53AP: Review. Oxygen at pressures much greater than 1 atm is toxic to lung cells. Assume a deep-sea diver... Problem 21.54AP Problem 21.55AP: Model air as a diatomic ideal gas with M = 28.9 g/mol. A cylinder with a piston contains 1.20 kg of... Problem 21.56AP: Review. As a sound wave passes through a gas, the compressions are either so rapid or so far apart... Problem 21.57AP Problem 21.58AP: In a cylinder, a sample of an ideal gas with number of moles n undergoes an adiabatic process. (a)... Problem 21.59AP: As a 1.00-mol sample of a monatomic ideal gas expands adiabatically, the work done on it is 2.50 ... Problem 21.60AP: A sample consists of an amount n in moles of a monatomic ideal gas. The gas expands adiabatically,... Problem 21.61AP Problem 21.62AP: A vessel contains 1.00 104 oxygen molecules at 500 K. (a) Make an accurate graph of the Maxwell... Problem 21.63AP: A pitcher throws a 0.142-kg baseball at 47.2 m/s. As it travels 16.8 m to home plate, the ball slows... Problem 21.64AP: The latent heat of vaporization for water at room temperature is 2 430 J/g. Consider one particular... Problem 21.65AP: A sample of a monatomic ideal gas occupies 5.00 L at atmospheric pressure and 300 K (point A in Fig.... Problem 21.66AP Problem 21.67AP Problem 21.68AP Problem 21.69AP Problem 21.70AP: On the PV diagram for an ideal gas, one isothermal curve and one adiabatic curve pass through each... Problem 21.71AP Problem 21.72AP: Review, (a) H it has enough kinetic energy, a molecule at the surface of the Earth can escape the... Problem 21.73AP Problem 21.74CP Problem 21.75CP: A cylinder is closed at both ends and has insulating EZZ3 walls. It is divided into two compartments... format_list_bulleted