MHT CET 2024 Chemistry question

Chemistry Thermodynamics MHT CET 2024

Calculate the enthalpy change when 12 g carbon react with sufficient hydrogen to form methane. If enthalpy of formation of methane is -75 kJ mol

(A)-45 kJ
(B)-60 kJ
(C)-75 kJCorrect
(D)-90 kJ

Answer: (C)

Solution

The formation reaction is , kJ mol, which is the enthalpy change when 1 mole (12 g) of carbon reacts with excess hydrogen to give 1 mole of methane. Moles of carbon taken \dfrac${12\

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Question ID VK-096695