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Brilliant_brown [7]
3 years ago
7

The phenomenon responsible for maintaining the upward movement of water through vessels in a tree is __________.

Chemistry
1 answer:
Goshia [24]3 years ago
3 0

Answer:

Cohesion

Explanation:

Cohesion tension theory of water movement up the tree vessels

 Cohesion is the term used to describe the binding forces present in water molecules through hydrogen bonds as such the water molecules have considerable tensile strenghth allowing them to be pulled up into the leaves of plants through the tree vessels without breakage as longitutudinal stress are placed on the water as it is pulled up

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Molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. This is a statement of __________.A) the law of multiple
fgiga [73]

Answer:

The correct answer is B.

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7 0
3 years ago
In a study of the conversion of methane to other fuels, a chemical engineer mixes gaseous methane and gaseous water in a 0.778 L
sergejj [24]

Answer:

the water concentration at equilibrium is

⇒ [ H2O(g) ] = 0.0510 mol/L

Explanation:

  • CH4(g) + H2O(g) ↔ CO(g) + 3H2(g)

∴ Kc = ( [ CO(g) ] * [ H2 ]³ ) / ( [ CH4(g) ] * [ H2O(g) ] ) = 0,30

  • equilibrium:

⇒ [ CO(g) ] = 0.206 mol / 0.778 L = 0.2648 mol/L

⇒ [ H2(g) ] = 0.187 mol / 0.778 L = 0.2404 mol/L

⇒ [ CH4(g) ] = 0.187 mol / 0.778 L = 0.2404 mol/L

replacing in Kc:

⇒ ((0.2648) * (0.2404)³) / ([ H2O(g) ] * 0.2404 ) = 0.30

⇒ 0.0721 [ H2O(g) ] = 3.679 E-3

⇒ [ H2O(g) ] = 0.0510 mol/L

7 0
3 years ago
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