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The solubility of gases in liquids generally:
Is unaffected by temperature
Increases with increase in temperature
Decreases with increase in temperature
First increases then decreases with increase in temperature
Decreases with increase in temperature
The solubility of gases in liquids is an exothermic process, meaning heat is released during dissolution. According to Le Chatelier's principle, increasing the temperature provides thermal energy that overcomes the intermolecular forces holding gas molecules in the liquid, causing the gas to escape and thus decreasing its solubility.
The solubility of gases in liquids is an exothermic process, meaning heat is released during dissolution. According to Le Chatelier's principle, increasing the temperature provides thermal energy that overcomes the intermolecular forces holding gas molecules in the liquid, causing the gas to escape and thus decreasing its solubility.
This concept is a cornerstone of General Science in UPSC and SSC exams, specifically under Thermodynamics and Solutions within Chemistry.
Gas dissolution is generally exothermic; therefore, high temperatures shift the equilibrium toward the gaseous state.
Henry's Law states that the solubility of a gas is directly proportional to the partial pressure of the gas above the liquid.
Aquatic life is more abundant in colder waters because higher oxygen solubility is maintained at lower temperatures.
Thermal pollution in industrial plants decreases dissolved oxygen levels in water bodies, harming fish populations due to this specific physical chemistry principle.
Carbonated beverages are stored under high pressure and low temperature to maximize the solubility of carbon dioxide.
Option B is incorrect because increasing temperature adds kinetic energy to gas molecules, promoting their escape from the liquid phase rather than retention.
Option A is incorrect as temperature is a primary variable affecting the solubility of gas-in-liquid systems.
C is correct тАФ The solubility of gases in liquids decreases with an increase in temperature due to the exothermic nature of the dissolution process.
Relate this to Geography's 'Oceanography' section; remember that cold ocean currents are typically more productive and oxygen-rich than warm surface waters, directly applying this chemical principle to marine ecosystems.
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