Question

What is the enthalpy change of isomerization for butene-1 to butene-2 given the following information:- The standard enthalpy of formation for butene-1 is -24.7 kJ/mol- The standard enthalpy of formation for butene-2 is -25.8 kJ/mol

Answer 1

To calculate the enthalpy change of isomerization for butene-1 to butene-2, we can use the following formula:H_isomerization = H_f butene-2  - H_f butene-1 Where:H_isomerization = enthalpy change of isomerizationH_f butene-1  = standard enthalpy of formation for butene-1H_f butene-2  = standard enthalpy of formation for butene-2Plugging in the given values:H_isomerization =  -25.8 kJ/mol  -  -24.7 kJ/mol H_isomerization = -1.1 kJ/molThe enthalpy change of isomerization for butene-1 to butene-2 is -1.1 kJ/mol.