Question

From the given information, calculate enthalpy of formation of 2 moles of C₆H₆(l) at 25°C. 

Given: 

Δ_cH(C₆H₆(l)) = –3264.6 kJ/mol 

Δ_cH(C(s)) = –393.5 kJ/mol 

Δ_fH(H₂O(l)) = –285.83 kJ/mol 

(1) –124.5 kJ/mol 

(2) –46.11 kJ/mol 

(3) 46.11 kJ/mol 

(4) 124.5 kJ/mol

Answer 1

Correct answer is : (3) 46.11 kJ/mol

Formation Reaction