Whether combustion of fuel is a physical or chemical change? How explain.
Answers
Answer:combustion is a chemical reaction
Explanation:
during combustion mostly hydrocarbons react with oxygen to form water and carbon dioxide also light and heat is released in the form of energy...hence combustion is a chemical process
Answer:
Combustion of a fuel is a chemical change.
Explanation:
How do we define a chemical change ?
when a substance react to form new product.
The change will always be irreversible meaning we cannot get the substance back from the product.
After combustion of a fuel CO2 along with heat is formed. In the reaction we can't get the fuel back from the CO2 and heat thus making combustion a chemical change.
Now you may ask what is a physical change?
Physical changes are thoses changes that can be reversable.
EG -melting of ice
The solid ice melts to form water but that water can again be put in the freezer to be coverted back to ice.