[单选题]
The following graph repstftnj2,c*7 r3* ccpio*qk o7resents the ch)6hwvkt xi0o1 zsj*c)ange of concentration of a gaseous reactant and gaseous product during a reaction. At t=10mins, the temperature is increased and at t=15mins, the volume of the )zwth)vok s j6*x0ic1reaction vessel is increased.
A. Enthalpy change of forward reaction is Exothermic;Moles of gasis is Reactants more than the products
B. Enthalpy change of forward reaction is Exothermic;Moles of gasis is Reactants less than the products
C. Enthalpy change of forward reaction is Endothermic ;Moles of gasis is Reactants more than the products
D. Enthalpy change of forward reaction is Endothermic;Moles of gasis is Reactants less than the products
