Page 10 - The Chemistry of Cooking
P. 10

What affects boiling?










                       • Pressure:                                                                  • Types of Molecules:


                       when the external pressure is:                                               the types of molecules that make up a liquid

                                                                                                    determine its boiling point. If the
                       • less than one atmosphere, the boiling                                      intermolecular forces between molecules are:
                           point of the liquid is lower than its normal

                           boiling point.                                                           • relatively strong, the boiling point will be
                                                                                                        relatively high.
                       • equal to one atmosphere, the boiling point

                           of a liquid is called the normal boiling point.                          • relatively weak, the boiling point will be
                                                                                                        relatively low.
                       • greater than one atmosphere, the boiling
                           point of the liquid is greater than its
                           normal boiling point.
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