Acandy bar has a total mass of 75.0 grams. in a calorimetry experiment, a 1.0-g sample of this candy bar was burned in a calorimeter surrounded by 1000g of water. the temperature of the water in contact with the burning candy bar was measured and found to increase from an initial temperature of 21.2c to a final temperature of 24.3c.
a. calculate the amount of heat in calories release when the 1.0-g sample burned.
b. convert the heat in calories to nutritional calories and then calculate the energy content (fuel value) in cal/g.
c. calculate the total caloric content of the candy bar in calories.

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.

answerto predict;