he compound nonane, C9H20, is a good fuel. It is a liquid at ordinary temperatures. When the liquid is burned, the reaction involved isC9H20(?) + 14 O2(g)9 CO2(g) + 10 H2O(g) The standard enthalpy of formation of liquid nonane at 25 °C is -274.7 kJ mol-1; other relevant enthalpy of formation values in kJ mol-1 are: C9H20(g) = -228.2 ;   CO2(g) = -393.5 ;   H2O(g) = -241.8(a) Calculate the enthalpy change in the burning of 3.000 mol liquid nonane to form gaseous products at 25°C. State explicitly whether the reaction is endothermic or exothermic.?H° =  kJ endothermicexothermic(b) Would more or less heat be evolved if gaseous nonane were burned under the same conditions?

The compound nonane, C9H20, is a good fuel. It is a liquid at ordinary temperatures. When the liquid is burned, the reaction involved isC9H20(?) + 14 O2(g)9 CO2(g) + 10 H2O(g) The standard enthalpy of formation of liquid nonane at 25 °C is -274.7 kJ mol-1; other relevant enthalpy of formation values in kJ mol-1 are: C9H20(g) = -228.2 ;   CO2(g) = -393.5 ;   H2O(g) = -241.8(a) Calculate the enthalpy change in the burning of 3.000 mol liquid nonane to form gaseous products at 25°C. State explicitly whether the reaction is endothermic or exothermic.?H° =  kJ endothermicexothermic(b) Would more or less heat be evolved if gaseous nonane were burned under the same conditions?morelessWhat is the standard enthalpy change for vaporizing 3.000 mol C9H20() at 25°C??H° =  kJCalculate the enthalpy change in the burning of 3.000 mol gaseous nonane to form gaseous products at 25°C.?H° =  kJ