Question

Which of the following is lost to the environment as heat so that it cannot be continually recycled?

Group of answer choices

oxygen

nitrogen

phosphorous

energy

Answer 1

Energy

Step-by-step explanation:

Many chemical reactions release energy in the form of heat, light, or sound. These are exothermic reactions. Exothermic reactions may occur spontaneously and result in higher randomness or entropy (ΔS > 0) of the system. They are denoted by a negative heat flow (heat is lost to the surroundings) and decrease in enthalpy (ΔH < 0). In the lab, exothermic reactions produce heat or may even be explosive.