In The Pros and cons of Plastics, explore how the economy (the way materials are made, sold, and
bought) is affected by using and producing plastics. Use
the information to answer the question.
How does producing plastics benefit the economy?

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.