The Law of Conservation of Energy

The law of conservation of energy states that energy cannot be created or destroyed, and it can only be converted from one form to another. The total amount of energy in a system is never more than the sum of its parts. Reactants P and Q have 50 J each, while the products P, Q, and Q have 104 J each. The energy from the reactants is absorbed into the products. It is important to understand the law of conservation of energie.

The conservation of energy is a fundamental principle in physics and chemistry. This principle states that energy in closed systems is always constant. It also applies to different forms of energy, including kinetic and thermal energy. In general, different forms of energy are associated with different amounts of entropy, which measures the microscopic disorder of the constituents. According to the second law of thermodynamics, entropy in a closed system cannot decrease. Moreover, a closed system cannot convert high entropy thermal energy into equal amounts of low entropy kinetic energy.

This law states that a chemical reaction cannot create mass. For example, a carbon atom in coal will change from a solid to a gas, but it will not alter its mass. A toy car hitting a wall, on the other hand will convert kinetic energy into potential.