Given van der Waals constant ' a ' for NH_3, H_2, O_2 and CO_2 are respectively 4.17, 0.244, 1.36 and 3.59 . Which one of the following gases is most - Chemistry MCQ NEET (UG) 2018 2026 | ExamTest.live

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Given van der Waals constant ' a' for NH_{3}, H_{2}, O_{2} and CO_{2} are respectively 4.17, 0.244, 1.36 and 3.59 . Which one of the following gases is most easily liquefied?

Solution & Step-by-step Explanation

The van der Waals constant ' a' is a measure of the magnitude of intermolecular attractive forces. A higher value of ' a' means stronger attractive forces, which makes it easier for the gas to be liquefied. Among the given values, NH_{3} has the highest ' a' (4.17).

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Given van der Waals constant ' a' for NH_{3}, H_{2}, O_{2} and CO_{2} are respectively 4.17, 0.244, 1.36 and 3.59 . Which one of the following gases is most easily liquefied?

O_{2}

H_{2}

NH_{3}

CO_{2}

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