Question

Why does water boil at 100° Celsius while hydrogen sulphide boils at 58 degrees Celsius? ​

Answer 1

When vapor pressure reaches an equivalent value to the surrounding air pressure, the liquid(in this case water) will boil. When at sea level, vapor pressure is equal to the atmospheric pressure which is at 100 degrees celsius. Water has a high boiling point because water requires more energy to break its hydrogen bonds before it can boil to high.