45,849 calories are given off when 85 gram of steam condenses to liquid water.
Vaporization is always a highly endothermic (heat-absorbing) process because you must break all the intermolecular interactions present inside of the liquid phase.
So,
Q = mass × heat of vapourization
Q = m×ΔH[tex]_{vap}[/tex]
Q = 85 × 539.4
Q = 45,849 cal
Therefore, 45,849 calories are given off when 85 gram of steam condenses to liquid water.
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