Any substance that contains a definite chemical composition. "Pure" refers to having only one chemical composition and can be used to classify solid, liquid, and gas.

Pure Substance

A graph comparing energy added and temperature that shows a substance at its three phases.

University of California, Davis

Energy cannot be created nor destroyed. Energy is transferred through heat or work. The formula is ΔEtotal = Q + W (Where Q is heat and W is work).

Conservation of Energy

Physics Libretext

Display the types of energy interactions that occur in an open system where a system interacts with the environment or a closed system where a system has two or more substances interacting with each other.

Learn Before

Related

Learn After