Ask Question
5 October, 22:34

8. The standard enthalpy of formation of RbF (s) is - 557.7kJ/mol and the standard enthalpy of formation of RbF (aq, 1 m) is - 583.8 kJ/mol. Determine the enthalpy of solution of RbF and indicate whether the solution temperature will increase or decrease when RbF is dissolved in water.

+5
Answers (1)
  1. 6 October, 01:52
    0
    Given

    The enthalpy of formation of RbF (s) is - 557.7kJ/mol

    The standard enthalpy of formation of RbF (aq, 1 m) is - 583.8 kJ/mol

    The enthalpy of solution of RbF = Enthalpy of RbF (aq) - Enthalpy of formation of RbF (s)

    = - 583.8 - (-557.7) kJ/mol

    = - 26.1 kJ/mol

    The enthalpy is negative which means that the temperature will rise when RbF is dissolved.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “8. The standard enthalpy of formation of RbF (s) is - 557.7kJ/mol and the standard enthalpy of formation of RbF (aq, 1 m) is - 583.8 ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers