Using the data for standard entropy and enthalpy. Calculate the standard free energy ofeach reaction at 25 oC.a) 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l)b) 6Cl2(g) + 2Fe2O3(s) → 4FeCl3(s) + 3O2(g)c) 2CH3OH(g) + H2(g) → C2H6(g) + 2H2O(g)d) Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)

For the reaction 3 C2H2(g) → C6H6(l) at 25°C, the standard enthalpy change is -631 kJ and the standard entropy change is -430 J/K. Calculate the standard free energy change at 25°C.Group of answer choices-618 kJ-1061 kJ-503 kJ948 kJ

Calculate the free-energy change at 25度 of burning 2.30 g O2 as the following reaction: CH4(g)+2O2(g)→CO2(g)+2H2O(g)

Calculate the standard entropy change for the reaction:C8 H 18 (l) + 25 ⁄2 O 2 (g) ® 8 CO 2 (g) + 9 H 2 O (g)given the following information:Substance S° [J mol-1 K -1 )]C8 H 18 329.3O 2 205.2CO 2 213.8H 2 O 70.0

Determine the enthalpy change for 7.1 g of C6H6 in the following reaction using the enthalpies of formation. (5 marks) 2C6H6 (l) + 15O2(g) 12CO2(g) + 6H2O(g)

Question 16Calculate the standard enthalpy of combustion for the following reaction:C6H12O6(s) + 6O2(g) --> 6CO2(g) + 6H2O(l)