Answer:
Correct answer: p₂ : p₁ = 1 : 3
Explanation:
A process that occurs at a constant temperature is called an isothermal process and the formula that applies to this process is:
p · V = const where p is pressure and V is volume
Given : V₂ = 3 V₁
p₁ V₁ = p₂ V₂ ⇒ p₂ / p₁ = V₁ / V₂ ⇒ p₂ / p₁ = V₁ / 3 V₁ ⇒ p₂ / p₁ = 1 / 3
p₂ : p₁ = 1 : 3
which means that when the volume is increased three times the pressure is reduced three times
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