Illustrate the procedure you will follow to isolate caffeine. (use only pictures you draw to show what you will do. you can write down things like amounts, chemicals used, time, or temperature to go with the pictures.)

confused

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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.

the awnser is group 12