jee_main_2025_28_jan_morning - Chemical Thermodynamics Topics

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QUESTION #34 Phase Equilibrium and Le Chatelier's Principle
Ice and water are placed in a closed container at a pressure of 1 atm and temperature 273.15mathrmK . If pressure of the system is increased 2 times, keeping temperature constant, then identify correct observation from following:
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QUESTION #50 Bond Enthalpy Calculation
The formation enthalpies, Delta mathrmH_mathrmf^ominus for mathrmH_(mathrmg) and mathrmO_(mathrmg) are 220.0 and 250.0~mathrmkJ~mol^-1 , respectively, at 298.15mathrmK , and Delta mathrmH_mathrmf^- for mathrmH_2mathrmO_(mathrmg) is -242.0mathrmkJ\,mol^-1 at the same temperature. The average bond enthalpy of the O-H bond in water at 298.15mathrmK is \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ (nearest integer).
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