Three bulbs are connected by tubing, and the tubing is evacuated. the volume of the tubing is 47.0 ml. the first bulb has a volume of 30.0 ml and contains 4.49 atm of argon, the second bulb has a volume of 250 ml and contains 2.64 atm of neon, and the third bulb has a volume of 21.0 ml and contains 9.36 atm of hydrogen. if the stopcocks (valves) that isolate all three bulbs are opened, what is the final pressure of the whole system in atm?

The final pressure of the whole system is 2.849 atm

Explanation:

According to Boyle's law, for eacht gas applies the following equation:

PiVi = PfVf    or Pf = PiVi/Vf

with Pi = the initial pressure

with Vi = the initial volume

with Pf = the final pressure

with Vf = the final volume

The final volume for each gas is (47.0 + 30.0 + 250 + 21.0) mL, which is in total = 348 mL

2. For the first bulb, with argon:

Pf = (4.49 atm)(30.0 mL) / (348 mL)

= 0.387 atm

For the second bulb, with neon

Pf = (2.64 atm)(250 mL) / (348 mL)

= 1.897 atm

For the third bulb, with hydrogen:

Pf = (9.36 atm)(21 mL) / (348 mL)

= 0.565 atm

Step 3:Calculate the final pressure

P total = P (Ar) + P (Ne) + P (H2)

= (0.387 + 1.897 + 0.565) atm

= 2.849 atm

The final pressure of the whole system is 2.849 atm

yea hi

explanation:

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: