Answer:
C. high. In denser air, the increased density leads to more frequent molecular collisions, resulting in higher air pressure. This relationship is governed by the ideal gas law, where pressure is directly proportional to density. Therefore, the correct answer is C. high.
Step-by-step explanation:
Air pressure is directly related to the density of air. The relationship between air pressure (P), density (ρ), and temperature (T) is given by the ideal gas law:
, where (R) is the gas constant. Assuming constant temperature, if the air density increases, the air pressure will also increase.
Now, let's consider the kinetic theory of gases. The pressure of a gas is related to the average kinetic energy of its molecules. In a dense air scenario, there are more air molecules in a given volume, leading to more frequent collisions between molecules and with the container walls. These frequent collisions result in higher pressure.
In summary, denser air leads to higher air pressure due to the direct relationship between pressure and density in the ideal gas law. This is also consistent with the kinetic theory of gases, where higher density corresponds to increased molecular collisions and, consequently, higher pressure. Therefore, the correct answer is C. high.