You make some iced tea by dropping 325 grams of ice into 500.0 ml of warm tea in an insulated pitcher. if the tea is initially at 30.0°c and the ice cubes are initially at 0.0°c, how many grams of ice will still be present when the contents of the pitcher reach a final temperature? the tea is mostly water, so assume that it has the same density (1.0 g/ml), molar mass, heat capacity (75.3 j/k/mol), and heat of fusion (6.01 kj/mol) as pure water. the heat capacity of ice is 37.7 j/k/mol.

Explanation:

The given data is as follows.

      Mass of ice dropped = 325 g

      Initial temperature = = (30 + 273) K = 303 K

     Final temperature = = (0 + 273) K = 273 K

Now, using density of water calculate the mass of ice as follows.

                        = 500 g

As the relation between heat energy, specific heat and change in temperature is as follows.

                 Q =

                      =

                      = 62750 J

Also, relation between heat energy and latent heat of fusion is as follows.

                       Q = m L

              =

             = 108300 J

Therefore, we require heat but we have 40774.95 J.

So,    

                      =

                      = 188.4 g

Hence, the mass of ice = 325 g - 188.4 g

                                        = 137 g

Therefore, we can conclude that 137 g of ice will still be present when the contents of the pitcher reach a final temperature.

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.