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Elena L [17]
3 years ago
8

Please help me will reward Brainly

Chemistry
2 answers:
Damm [24]3 years ago
5 0
Is it carbon dioxide
zhannawk [14.2K]3 years ago
5 0
The answer is Carbon Dioxide (Co2).
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An ideal gaseous reaction (which is a hypothetical gaseous reaction that conforms to the laws governing gas behavior) occurs at
lana [24]

Answer:

ΔU = −55.45 kJ

Explanation:

From first law of thermodynamics in chemistry, we have;

ΔU = Q + W

where;

ΔU is change in internal energy

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W is the net work done

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Q = 74.6 kJ

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Thus;

ΔU = -74.6 kJ + W

We are given;

Constant pressure; P = 35 atm = 35 × 101325 = 3546375 N/m²

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Volume after reaction; V_f = 2.8 L = 0.0028 m³

Now,

W = -P(V_f - V_i)

W = - 3546375(0.0028 - 0.0082)

W = 19.15 KJ

Thus;

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ΔU = −55.45 kJ

6 0
3 years ago
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