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cupoosta [38]
3 years ago
8

2.50 L of gas originally at 50 K is warmed to 80 K. If the pressure remains constant, which gas law needs to be used to find the

new volume?
A : Charles Law
B : Combined Gas Law
C : Boyle's Law
D : Gay-Lussac’s law
Chemistry
1 answer:
Brilliant_brown [7]3 years ago
7 0

Answer:

A

Explanation:

You want an equation that includes both V and T. Charles' Law states that V =kT or V₁/T₁ = V₂/T₂, so this is the best formula to use.

B: The Combined Gas Law is p₁V₁/T₂ = p₂V₂/T₂ will work, but it's overkill for the situation. You can assume any constant value for the pressure, and it will cancel from each side of the equation,

C is wrong. Boyle's Law is p₁V₁ = p₂V₂. It does not include the temperature.

D is wrong. Gay-Lussac's Law is p₁/T₂ = p₂/T₂. It does not include the volume.

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Explanation:

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Answer:

The answer to your question is: letter B

Explanation:

Reaction

                 Cr2O3(s)   +   3CCl4(l)   ⇒  2CrCl3(s)  +   3COCl2(g)

From the information given and the reaction, we can conclude that:

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Colorless liquid = CCl4 (l)    "l" means liquid   and is the other reactant

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Then, as a green specks remains it means that the excess reactant is Cr2O3, so, CCl4 is the limiting reactant.

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Answer:

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