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Marat540 [252]
3 years ago
6

At constant pressure, which of these systems do work on the surroundings? Check all that apply.

Chemistry
1 answer:
lana66690 [7]3 years ago
6 0
I believe the correct answers from the choices listed above are the second and the last option. At constant pressure, the systems 2A(g) + B(g) ---> 4C(g)  and 2C(g) A(s) + B(s) ---> C(g) produces work to the surroundings. <span>When a gas is evolved during a chemical reaction, the gas can be imagined as displacing the atmosphere - pushing it back against the atmospheric pressure. The work done is therefore V*P where V is the volume of gas evolved, and P is the atmospheric pressure. </span>
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Explanation:

We have the following chemical reaction:

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Taking in account the chemical reaction, we devise the following reasoning:

if           2 moles of H₃PO₄ are reacting with 3 moles of Zn

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mass of Zn = 0.354 × 65 = 23.01 g

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number of moles

brainly.com/question/13911775

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