Question

A propane container used to fuel a gas grill is empty after a few weeks of daily grilling. The energy from the propane did not disappear; it was transferred into the cooked food and into the atmosphere as heat. What law of science does this example best illustrate?

Answer 1

It is the first law of thermodynamics

Step-by-step explanation:

The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems. The law of conservation of energy states that the total energy of an isolated system is constant; energy can be transformed from one form to another, but can be neither created nor destroyed.

Here we have a transfer of energy from the propane in the container into cooked food and heat.