HELP ME IT'S FOR CHEMISTRY I NEED HELP 15pts

Answers explained below in detail.

Explanation:

In general, notice how they show you how to find the current state of matter (phase) for CO2. That line shows that at the intersection of the temperature and pressure (think of it as a coordinate of (T, P)), it is resting on the line between solid and gas.

For question 1, it asks us to first examine what phase the CO2 would be at a certain pressure and temperature. Basically, just plot the coordinate. It is at -100 C, and 1 atm pressure. A file is attached for what this looks like. Where those two data points intersect is the current phase. That would be the solid phase at -100 C and 1 atm pressure. That's actually what dry ice is, solid CO2 :). Then, we go to room temperature. We now find the coordinate at the same pressure,  but at room temperature, which is about 68 F, or 20 C. That point is also shown in the file. Notice that the intersection point is in the gas phase now. Going from a solid to a gas directly is called sublimation. That is what that smoke is that dry ice produces, essentially.

Unfortunately, since you didn't provide a phase diagram for water, you'll have to try the rest yourself.

For 5, though, the critical point is the point that ends the graph, shown in the file as well. Hope this helps.

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:

the answer is the first option

explanation:

just googled it m8. not that hard

lol