Thank you. This chemical equation represents the polymerization of n molecules of ethylene (ethene).

Hi, please help me with this exercise. Thank you.

This chemical equation represents the polymerization of n molecules of ethylene (ethene).

n(H2C=CH2) --> -(H2C-CH2)-n

How much energy must be supplied or removed if 555 molecules are polymerized? If energy must be supplied give a positive number, if energy must be removed give a negative number.