The difference in the water levels of a beaker holding an upside-down buret containing a pocket of hydrogen gas is 23 cm H2O. What is the difference in pressure (pressure correction factor) between the atmospheric pressure and the pressure inside the buret? Express this in torr.

Pressure difference = 16.9 torr

Explanation:

The formula to be used since their is a difference in water level in the beaker and burette is;

Atmospheric pressure = pressure of gas in burette + pressure of water

Atmospheric pressure - gas pressure = pressure of water

Therefore, the difference between atmospheric pressure and gas pressure can be seen to be the pressure of the water

The pressure of water in mmHg = 23 cm H20 = 230 mmH2O

To convert to mmHg, we have to divide by 13.6 since mercury is 13.6 times heavier than water.

Pressure of water = 230 mmH2O * (1 mmHg/13.6 mmH20) = 16.9 mmHg

Since I mmHg = 1 torr, therefore,

Pressure difference = 16.9 torr

water   molecules stay close to each other through cohesion, the collective action of hydrogen bonds between water molecules. cohesion plants draw water upwards from the root through the stem's transport tubes (xylem) to the leaf. this transport occurs even in large trees and against gravity. transpiration, evaporation of water from plant leaves, creates a tension on water molecules being pulled up from the stem and roots.

water also has high (the attraction of one substance to another) properties because of its polar nature. adhesion of water molecules to plant cell walls counteract gravity while water is transported from roots to leaves.

water exhibits a very high surface tension when compared to other liquids. surface tension is a property of a liquid that holds the surface together and allows it to resist an external force. by capillary action, the water forms concave menisci inside the pores. the high surface tension of water pulls the concavity outwards, generating enough force to lift water from the roots to the leaves of plants.

thus, cohesion, along with adhesion and surface tension creates a capillary action that keeps water molecules interacting and moving through the plants out to the leaf cells.

therefore, option d) is the correct answer.

explanation:

confused

confused             hewdejdnjnjsnd