EVERYDAY SCIENCE

Detailed explanation-1: -The reaction C3H8+5O2→3CO2+H2O is an example of combustion reaction. Propane on complete combustion in presence of excess oxygen gives carbon dioxide and water.

Detailed explanation-2: -C3H8 + 5O2 → 3CO2 +4H2O obeys the conservation of the mass. A balanced chemical reaction always obeys the conservation of mass. has 5 x 1 = 5 carbon atoms and 5 x 2 = 10 oxygen atoms. Converting an unbalanced chemical reaction into one that is balanced is mostly a “trial and error” process.

Detailed explanation-3: -Answer and Explanation: As we can see energy is on the product side that means energy or heat is released. So, the given reaction is exothermic and the sign of H will be negative.

Detailed explanation-4: -The combustion reaction of Propane ( C 3 H 8 ) is written as: C 3 H 8 + 5 O 2 → 3 CO 2 + 4 H 2 O + Heat ( Propane ) ( Oxygen ) ( Carbon ( Water ) dioxide )

Detailed explanation-5: -This is a perfect example of a combustion reaction because we have a carbon based compound reaction with oxygen gas to produce carbon dioxide and water.