2 points 7. Given the following specific heats of energy, if the materials were left
out in the sun for 2 hours, which material would be the hottest? *
Material A: 2.03 J/gC
Material B: 0.71 J/gC
Material C: 0.89 J/gC
Material D: 0.45 J/gC

Material D as its specific heat is the smallest.

Explanation:

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In this case, since the specific heat is defined as the energy required to increase (or decrease) 1 gram of a material by 1 °C, we can infer that the smaller the specific, the less energy is required for such temperature change, therefore, since material D needs 0.45 J of energy to increase the temperature of 1 g by 1 °C we can see that it will become the hottest as it has the smallest specific heat among the other ones.

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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.

5.6⋅10−^19  j

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