The table shown here lists the specific heat of several substances. Substance Specific heat J/g/°C 4.18 2.44 1.80 1.40 water ethyl alcohol benzene sulfuric acid Which of the following statements are true? Select all that apply. ►View Available Hint(s) 0 Water has a high specific heat due to the hydrogen bonding between water molecules. More heat is required to raise the temperature of 1 g of benzene 1 °C than to raise the temperature of 1 g of water 1 °C. More heat is required to raise the temperature of 1 g of water 1 °C than to raise the temperature of 1 g of ethyl alcohol 1 °C. Sulfuric acid is less resistant to temperature change than water. Ethyl alcohol likely exhibits more hydrogen bonding than water. Benzene is more resistant to temperature change than sulfuric acid. Water is less resistant to temperature change than ethyl alcohol.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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