Explain H2O is liquid at ordinary …
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Sia ? 6 years, 5 months ago
Due to greater electronegativity of O than S, H2O undergoes extensive intermolecular H-bonding. As a result, H2O is a liquid at room temperature. In contrast, H2S does not undergo H-bonding. It exists as discrete molecules which are held together by weak Van der Waals forces of attraction. To break these forces of attraction, only a small amount of energy is required. Therefore, H2S is a gas at room temperature.
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