What is the enthalpy of heat for dissolving quicklime and water?(a) 55 kJ/mol(b) 63 kJ/mol(c) 75 kJ/mol(d) 78 kJ/molThe question was asked in final exam.Enquiry is from s-Block Elements topic in chapter s-Block Elements of Chemistry – Class 11

What is the enthalpy of heat for dissolving quicklime and water?(a) 55

1.	What is the enthalpy of heat for dissolving quicklime and water?(a) 55 kJ/mol(b) 63 kJ/mol(c) 75 kJ/mol(d) 78 kJ/molThe question was asked in final exam.Enquiry is from s-Block Elements topic in chapter s-Block Elements of Chemistry – Class 11
Answer» Right choice is (b) 63 kJ/mol Best explanation: Calcium hydroxide is prepared by dissolving quicklime and water and the enthalpy change for this reaction is 63 kJ/mole (the sign is NEGATIVE). Here the chemical formulae for quicklime and Calcium hydroxide are CAO and CA(OH)2 has twice respectively.

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What is the enthalpy of heat for dissolving quicklime and water?(a) 55 kJ/mol(b) 63 kJ/mol(c) 75 kJ/mol(d) 78 kJ/molThe question was asked in final exam.Enquiry is from s-Block Elements topic in chapter s-Block Elements of Chemistry – Class 11

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