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KMU MDCAT 2024 Chemistry #Gases #Ideal Gas Equation

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Calculate the work done when 1 mole of an ideal gas expands from 15 dm³ to 20 dm³ against a constant external pressure of 2 atmospheres. (KMU MDCAT 2024)

Verified Answer & Explanation⌄

Correct Answer: A) −10 atm·dm³

Concept Explanation

w = −PextΔV = −(2 atm)(20 − 15 dm³) = −10 atm·dm³.

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