Problem a. commercial styrene monomer typically contains 500 ppm of 4-methoxyphenol to prolong the storage lifetime of the chemical. determine the minimum amount (in percentage weight to that of styrene) of benzoyl peroxide required to initiate the polymerization of styrene.

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.

you did not give any options thus this is the best answer i can give to you with this little information you have given

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