If two gases are present in a container, the total pressure in the container is equal to a. the sum of the pressures that are exerted by each of the two gases. b. twice the sum of the pressures that are exerted by the individual gases. c. the sum of the pressures that each gas would exert if they occupied twice the volume. d. the sum of the pressures that each gas would exert if they occupied half the volume.

Option (a) is the correct answer.

Explanation:

Total pressure is defined as the sum of all the gases present in the container or vessel.

Hence, when there are two gases present in the container then total sum will be the sum of both the gases will be equal to the pressure of the gas.

Thus, we can conclude that out of the two options, if two gases are present in a container, the total pressure in the container is equal to the sum of the pressures that are exerted by each of the two gases.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.