14. Unlike addition polymers, condensation polymers form from .

monomers that have only one functional group
the head-to-tail joining of monomer units
the joining of unsaturated monomers
monomers that have at most three carbon atoms

Addition polymers are formed when monomer units join each other in a process that involves the rearranging of electrons in double or triple bonds in the monomer. The polymer is the ONLY product formed.

EX:C=C + C=C + C=C - ·C-C-C-C-C-C·

Ethene(ethylene) monomers -> part of polyethene

Explanation:

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

the answers would be

the first one and the second one