Q&A Hero

Question

The standard enthalpy of formation of RbF(s) is -557.7 kJ/mol and the standard enthalpy of formation of RbF(aq, 1 m) is -583.8 kJ/mol.Which of the following statements concerning the dissolution of RbF in water is/are CORRECT?
1/ The dissolution of RbF(s) in water is endothermic.
2/ The standard enthalpy of solution of RbF(s) is +26.1 kJ/mol.
3/ The dissolution of RbF(s) in water results in an increase in the solution's temperature.
A.1 only
B.2 only
C.3 only
D.1 and 2
E.1, 2, and 3