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Alik [6]
3 years ago
15

How can the rate of a reaction be decreased?

Chemistry
2 answers:
Naily [24]3 years ago
8 0

the answer is reducing surface area, when you reduce the surface area of a reaction, the chemical reaction rises, causing the RATE of the reaction to decrease :D
Agata [3.3K]3 years ago
3 0
Reducing surface area
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A

Explanation:

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m = E × Q

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Consider these changes.
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Answer:

(a) The system does work on the surroundings.

(b) The surroundings do work on the system.

(c) The system does work on the surroundings.

(d) No work is done.

Explanation:

The work (W) done in a chemical reaction can be calculated using the following expression:

W = -R.T.Δn(g)

where,

R is the ideal gas constant

T is the absolute temperature

Δn(g) is the difference between the gaseous moles of products and the gaseous moles of reactants

R and T are always positive.

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  • If Δn(g) < 0, W > 0, which means that the surroundings do work on the system.
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<em>(a) Hg(l) ⇒ Hg(g)</em>

Δn(g) = 1 - 0 = 1. W < 0. The system does work on the surroundings.

<em>(b) 3 O₂(g) ⇒ 2 O₃(g) </em>

Δn(g) = 2 - 3 = -1. W > 0. The surroundings do work on the system.

<em>(c) CuSO₄.5H₂O(s) ⇒ CuSO₄(s) + 5H₅O(g) </em>

Δn(g) = 5 - 0 = 5. W < 0. The system does work on the surroundings.

<em>(d) H₂(g) + F₂(g) ⇒ 2 HF(g)</em>

Δn(g) = 2 - 2 = 0. W = 0. No work is done.

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Alcohol in water is correctly termed "miscible". The equivalent answer is B.
If this has helped you, consider my answer to become the Brainliest!
4 0
2 years ago
Read 2 more answers
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