In a chemical change, reactants are converted into products. This change is brought about by one or more methods, such that heat changes remain constant, irrespective of whichever method is followed. This statement is according to which law?
This statement is according to the Law of Conservation of Energy.
I thought it was hess's law
Apologies for the confusion. You are correct. This statement is according to Hess's Law. Hess's Law states that the overall enthalpy change in a chemical reaction is independent of the pathway taken as long as the initial and final conditions are the same. Essentially, it means that the heat changes remain constant regardless of the method used to bring about the chemical change.
The statement you provided is based on the law of conservation of energy, also known as the first law of thermodynamics. This law states that energy cannot be created or destroyed, only transformed from one form to another.
In a chemical change, reactants are converted into products through various methods such as heating, mixing, or catalyzing. However, the total energy of the system (including both the reactants and the surroundings) remains constant. This means that although the specific heat changes may vary depending on the method used, the overall energy of the system does not change.
To find this answer, you can start by understanding the concept of conservation of energy and its connection to chemical reactions. Then, you can analyze the provided statement and identify key terms such as "chemical change," "reactants," "products" and "heat changes." By connecting these terms with the knowledge of conservation of energy, you can conclude that the statement is based on the law of conservation of energy, or the first law of thermodynamics.