Open Closed and Isolated Systems

​3 Basic Laws

The law of conservation of energy states that the total energy of a system is conserved. The law of conservation of mass states that the total mass of a system is conserved. Hess’s law states that the heat of reaction is independent of the path taken from the reactants to the products.

​​What makes an open system?

What makes an open system is that it is a system that can freely exchange and energy with it's surroundings.This makes it different than a closed an isolated system, as it is open to exchanges and not limited.

The answer is a closed system rather than an isolated system because as it is in its name, it is closed off from any exchanges with other systems even if they make contact.

C is the correct answer because we are involving the heat of decomposition of water, which leaves a temperature change in the water to occur which then leads to gas.

This reaction would be considered an endothermic and thermal reaction. This would be a thermal reaction because thermal breakdown reactions are those chemical reactions that disintegrate or decompose when heated and produce a variety of products. This would be considered an endothermic reaction as well because it involves the absorption of heat to breakdown the baking soda that make the muffins rise.