hannahmxx2
28.11.2021 •
Chemistry
1. The heat of combustion is a negative value. Do you think this indicates an exothermic or endothermic reaction? Explain.
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Ответ:
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Ответ:
27.43 kPa (Option A)
Explanation:
We can solve this by the use of the Ideal Gases Law.
P . V = n . R . T
As n and R are constant, we avoid them from the equation so:
P₁ . V₁ / T₁ = P₂ . V₂ / T₂
P₁ . 0776L / 298K = 32.6 kPa . 0.664L / 303K
P₁ . 0776L / 298K = 0.0714 kPa .L/K
P₁ . 0776L = 0.0714 kPa .L/K . 298K
P₁ = 21.289 kPa.L / 0.776L
P₁ = 27.43 kPa