4.) Benzene, C6H6, has a normal melting point of 5.5°C and a normal boiling point of 80.1°C. How much heat, in Joules, is required to convert a 54.68 gram sample of solid benzene at -30.0°C into to benzene vapor at a temperature of 120.0°C at a pressure of 1 atm? Some potentially useful physical data for benzene are: ssolid = 1.18 J/g∙°C; sliquid = 0.946 J/g∙°C; sgas = 1.05 J/g∙°C; ΔHfus = 9.95 kJ/mol; ΔHvap = 33.83 kJ/mol
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.
4.) Benzene, C6H6, has a normal melting point of 5.5°C and a normal boiling point of 80.1°C. How much heat,
in Joules, is required to convert a 54.68 gram sample of solid benzene at -30.0°C into to benzene vapor at a
temperature of 120.0°C at a pressure of 1 atm? Some potentially useful physical data for benzene are:
ssolid = 1.18 J/g∙°C; sliquid = 0.946 J/g∙°C; sgas = 1.05 J/g∙°C; ΔHfus = 9.95 kJ/mol; ΔHvap = 33.83 kJ/mol
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
How about for this one? Benzene, C6H6, boils at 80.1°C. How much energy,
in Joules, is required to convert a 54.68 gram sample of solid benzene at -30.0°C into to benzene vapor at its boiling point? (Some specific heat of liquid benzene is 1.74J/g? °C and its heat of vaporization is 395J/g.)
by Bartleby Expert
