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NEET 2011 Chemistry question

ChemistryThermodynamicsNEET 2011

Consider the following processes : (kJ/mol) : : : For , will be :

Answer: (2)

Solution

Use Hess's law. Label the equations (1) (+150), (2) (-125), (3) (+350). Target: . Take 2 (1) + (2) (3): $A

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Question ID VK-090668