If the body is 20%% efficient at converting chemical energy into mechanical energy, how many times would you have to lift the barbell in order to burn enough calories to use up the energy absorbed by eating a 300-food-calorie dish of ice cream? Note: 1 food calorie = 1 kilocalorie = 4186 JJ.

the correct answer is:

a. formation of precipitation

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.