How many grams of C₆H₆ liquid must decompose according to the following chemical equation to transfer 430kJ of heat?

Q: If 1.10 g of steam at 100.0  C condenses into 38.5 g of water,initially at 27.0  C, in an insulated…

A: Mass of steam = 1.10 g Initial temperature of steam = 100o C Latent heat of vaporisation = 2260 J/g…

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A: Dear Student, You have not posted, what you want us to calculate. But, assuming that the question is…

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Q: A 155.0 g piece of copper at 146 oC is dropped into 250.0 g of water at 15.3 oC. (The specific heat…

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Q: 6.56 Is AH positive or negative when 1 mol of water vapor con- denses to liquid water? Why? How does…

A: For an endothermic reaction, ∆H is positive whereas for an exothermic reaction, ∆H is negative

Q: Suppose 4.00 x 103 m3 of natural gas is used in a year to heat a certain building. Assuming that…

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Q: O A generic solid, X, has a molar mass of 81.6 g/mol. In a constant-pressure calorimeter, 19.5 g of…

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Q: Formation of carbon dioxide gas from (graphite) and oxygen, yields 393. 5 kJ of heat.

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Q: When one mole of C6H6C6H6 is burned, 3.27 MJ3.27 MJ of heat is produced. When the heat from burning…

A: Given : burning 1 mole of C6H6 produces heat = 3.27 MJ = 3.27 X 106 J…

Q: 7. How many grams of iron can be melted if the heat capacity is 876J/g and 3999) are available?

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A:

Q: When one mole of C6H6C6H6 is burned, 3.27 MJ3.27 MJ of heat is produced. When the heat from burning…

A: The number of moles of C6H6 is 1 mol. The heat released is 3.27 MJ. The weight of C6H6 is 7.87 g.…

Q: Fill in the blank by the name of the definition: Heat of __________ is the quantity of heat…

A: Heat : Heat is the mode of transfer of energy from one system to another. It is due to the…

Q: how many joules of heat are required to heat 25.0 g of ethyl alcohol from the prevailing room…

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Q: When 9.85 grams of potassium hydroxide (KOH) are dissolved in 150.0 grams of water at 25.0 °C in an…

A:

Q: How many grams of C₆H₆ must decompose according to the following chemical equation to transfer 430…

A: Number of moles is equal to ratio of mass to molar mass. Number of moles=MassMolar mass Heat is…

Q: 4. How much heat is required to raise the temperature of 854 g of H2O from 23.5 oC to 85.0 oC?

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Q: how much heat is released when a 27.7g sample of ethylene glycol at 42.76 is cooled to 32.5 c?

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Q: The heat of fusion for a material can be found by AHfus = m x Cp x AT where AHfus is the heat of…

A: Given: Mass of substance X, m = 10.00 g Specific heat, Cp = 4.18 J/g.oC And ΔT = 10.00 oC

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Q: 6 .If 2.1g of 100.0C steam begins to condense on a container of liquid water at 25.0C and they…

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Q: If 105 cal are added to 48.2 g of solid iron, what is the change in temperature of th AT =

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Q: The heat of fusion for a material can be found by AHfus = m x Cp x AT where AHfus is the heat of…

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Q: How many joules of heat are required to heat 68 g of lead from 20.4 oC to 74.8 oC?

A: Given, Mass of lead = 68g. Initial temperature = 20.40C. Final temperature = 74.80C.

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Q: student mixed 5.00 g (0.0594 mol) of solid cyclohexane, C6H12, (84.18 g mol–1) at its melting…

A: Number of moles = 0.0594 moles

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Q: A sample of gass occupies a volume of 56.4mL. As it expands, it does 133.3J of work on its…

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Q: How many grams of C6H6 must decompose according to the following chemical equation to transfer 430KJ…

A: Given, a chemical reaction as follows,C6H6(l)→3C2H2(g)  ∆H =630 kJwe are asked to calculate the…

Q: Write the thermochemical equation for the following reaction that occur at constant pressure. 1.)…

A: Introduction- A type of reaction that involves change in the physical states of the reactants or…

Q: How many grams of C₆H₆ must decompose according to the following chemical equation to transfer 430…

A: GIVEN: Reaction: C₆H₆(l) → 3 C₂H₂(g)          ∆H = 630 kJ To Solve: Grams of C₆H₆=?

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.