Answer:
The statement is true.
Explanation:
The limiting reagent in a chemical reaction is, indeed, a substance which is completely consumed in said chemical reaction when it is done. Since the reagent is completely consumed, the amount of product is limited, due to the fact the reaction can't continue without it. So yes, it's a true statement. ;)
Explanation:
Vapor pressure is defined as the pressure exerted by vapors or gas on the surface of a liquid.
When interaction between the solute and solvent are weak then solution will evaporate readily into the atmosphere. Therefore, it means vapor pressure increases with particularly weak solute-solvent interactions.
On the other hand, when interactions between the solute and solvent of a strong enough in a solution then vapors are not formed easily. This also means that vapor pressure decreases with particularly strong solute-solvent interactions.
Answer:
Surface tension
Capillary action
Explanation:
Surface tension is the force acting along the surface of the liquid causing the liquid surface to behave like a stretched elastic skin. Surface tension causes the water drops that fall on a smooth surface to form rounded drops or beads.
If you touch a piece of paper to the drop, water appears to move up into the paper on its own due to capillarity. Capillarity is the tendency of a liquid to rise or fall in a narrow tube.
This problem can be solved in a simplest way, without using Ideal Gas Equation and lengthy calculations.
The balance chemical equation is,
2 Al + 6 H₂O → 2 Al(OH)₃ + 3 H₂
Remember at STP 1 mole of any gas exactly occupies 22.4 L volume.
So,
54 g (2 mole) Al on reaction produces = 67.2 L (3 mole) H₂
Then,
78.33 g of Al will produce = X L of H₂
Solving for X,
X = (78.33 g × 67.2 L) ÷ 54 g
X = 97.47 L of H₂ Gas
