Used in welding metals, the reaction of acetylene with oxygen is: 2C2H2 (g) 5O2 (g) LaTeX: \longrightarrow 4CO2 (g) 2H2O (g) What is the value of LaTeX: \DeltaU (in kJ) if the combustion reaction of acetylene at atmospheric pressure (1 atm) consists of a volume change of -280. L and releases 314 kJ of heat

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

i'm wiling to try and you : )