with increasing elevation is called • Dyspnea • Barometric Formula Altitude sickness Most insects have . . in their legs .4 • Hands • Eyes • Ears

How is momentum related to the pressure exerted by a gas? Explain on the atomic and molecular level, considering the behavior of atoms and molecules.

Review. While you arc on a trip to Europe, you must purchase hazelnut chocolate bars for your grandmother. Eating just one square each day, she makes each large bar last for one and one-third months. Mow many bars will constitute a years supply for her?

One container is filled with helium gas and another with argon gas. Both containers are at the same temperature. Which molecules have the higher rim speed? Explain.

Daltons law of partial pressures states that the total pressure of a mixture of gases is equal to the sum of the pressures that each gas in the mixture would exert if it were alone in the container. Give a convincing argument for this law based on the kinetic theory of gases.

Global warming will produce rising sea levels partly due to melting ice caps and partly due to the expansion of water as average ocean temperatures rise. To get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00 C. Assume the column is not free to expand sideways. As a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to the surface can expand sideways onto land, and only to a limited degree. As another approximation, neglect the fact that ocean wan-ling is not uniform with depth.

Which of the assumptions below is not made in the kinetic theory of gases? (a) The number of molecules is very large. (b) The molecules obey Newtons laws of motion. (c) The forces between molecules are long range. (d) The gas is a pure substance. (e) The average separation between molecules is large compared to their dimensions. (f) of (his account are correct statements necessary for a clear and complete explanation? (ii) Which are correct statements that are not necessary to account for the higher thermometer reading? (iii) Which are incorrect statements?

An expensive vacuum System can achieve a pressure as low as 1.00107N/m2 at 20C. How many atoms are there in a cubic centimeter at this pressure and temperature?

Water leaks from a cup with a hole, as shown in Fig. 19.25. What would happen if you placed the palm of your hand tightly over the mouth of the cup? Why? (Hint: What happens to the pressure of the air above the water with respect to the pressure outside the cup?) Figure 19.25 Stop That Leak See Applying Your Knowledge Question 5.

What is the atmospheric pressure on top of Mt. Everest on a day when water boils there at a temperature at 70.0C ?