Given that : `C(s)+O_(2)(g)to CO_(2)(g) , Delta H = -394 kJ` and `2H_(2)(g)+O_(2)(g)to 2H_(2)O(l) , Delta H =- 568 kJ` and `C_(2)H_(5)OH(l)+3O_(2)(g)to 2CO_(2)(g)+3H_(2)O(l) , Delta H =- 1058` kJ/mole. Using the data, the heat of formation of ethanol is

Given that 2C(s) + 2O_(2)(g) rarr 2CO_(2)(g) Delta H = -787 kJ H_(2)(g) + (1)/(2)O_(2)(g) rarr H_(2)O(l) Delta H = -286 kJ C_(2)H_(2)(g) + (2) (1)/(2) O_(2)(g) rarr 2CO_(2)(g) + H_(2)O(l) Delta H = -1301 kJ Heat of formation of acetylene is :

Given that - 2C(s)+2O_(2)(g)rarr 2CO_(2)(g) Delta H = -787 KJ H_(2)(g)+ 1//2O_(2)(g)rarr H_(2)O(l) Delta =-286 KJ C_(2)H_(2)(g)+(5)/(2)O_(2)(g)rarr H_(2)O(l) Delta H=-1310 KJ Heat of formation of acetylene is :-

Given: 2C_((s)) + 2O_(2(g)) to 2CO_(2(g)), Delta H_1 =-767 kJ …(i) H_(2(g)) + 1/2 O_(2(g)) to H_2 O_((l)), Delta H_2 =-266 kJ …(ii) C_2 H_(2(g)) + 5/2 O_2 to 2CO_(2(g)) + H_2 O_((l)) , Delta H_3 =-1290 kJ ….(iii) Heat of formation of acetylene is _________ .

Given that - 2C(s)+2O_(2)(g)rarr 2CO_(2)(g) Delta H = -787 KJ H_(2)(g)+ 1//2O_(2)(g)rarr H_(2)O(l) Delta =-286 KJ C_(2)H_(2)(g)+(5)/(2)O_(2)(g)rarr H_(2)O(l) + 2CO_(2)Delta H=-1310 KJ Heat of formation of acetylene is :-

From the following data , C_("s , graphite") + O_(2(g)) to CO_(2 (g)) Delta H^(@) = - 393 . 5 kJ /mole H_(2) (g) + 1//2 O_(2) (g) to H_(2)O (l) Delta H^(@) = -286 kJ/mole 2C_(2) H_(6) (g) + 7O_(2) (g) to 4 CO_(2 (g)) + 6H_(2)O (l) Delta H^(@) = - 3120 kJ/mole Calculate the standard enthalpy of formation of C_(2) H_(6) (g) (in kJ/mole)

Given C_((s)) + O_(2(g)) rarr CO_(2(g)), Delta H = -395 kJ , S_((g)) + O_(2(g)) rarr SO_(2(g)) , Delta H = -295 kJ , CS_(2(l)) + 3O_(2(g)) rarr CO_(2(g)) + 2SO_(2(g)) , Delta H = -1110 kJ The heat of formation of CS_(2(l)) is

Given C_((s)) + O_(2(g)) rarr CO_(2(g)), Delta H = -395 kJ , S_((g)) + O_(2(g)) rarr SO_(2(g)) , Delta H = -295 kJ , CS_(2(l)) + 3O_(2(g)) rarr CO_(2(g)) + 2SO_(2(g)) , Delta H = -1110 kJ The heat of formation of CS_(2(l)) is

Calculate the enthalpy of formation of ethane from the following data : (i) C(s) + O_(2)(g) to CO_(2)(g) , Delta_(r)H^(@) = -393.5 kJ (ii) H_(2)(g) + 1/2 O_(2)(g) to H_(2)O(l), Delta_(r)H^(@) = -285.8 kJ (iii) C_(2)H_(6)(g) + 7/2O_(2)(g) to 2CO_(2)(g) + 3H_(2)O(l), Delta_(r)H^(@) = -1560.0 kJ

2C_((s)) + 1/2O_(2(gg) rarr CO_(2(g)) , DeltaH = -787 KJ H_(2(g)) + 1/2O_(2(g)) rarr H_2O_((l)) , DeltaH = -286 KJ C_2H_(2(g)) + 2 1/2O_(2(g)) rarr 2CO_(2(g)) + H_2O_((l)) , DeltaH = -1301 KJ . Heat of formation of acetylene in KJ is