α -maltose can be hydrolysed to glucose according to the following reaction.
${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}+{\mathrm{H}}_2\mathrm{O}\to 2{\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$
Given: Standard enthalpies of formation of C₁₂H₂₂O₁₁(aq) = -2238kJ /mol
Standard enthalpies of formation of H₂O(l) =-285kJ /mol
Standard enthalpies of formation of C₆H₁₂O₆ (aq) = -1263kJ /mol

Time (min)	0	50	100
Conc. of α-maltose (M)	4.0	1.0	0.25

Which of the following statements(s) is/are true?