When a 0.740-g sample of trinitrotoluene (TNT), C,H,N‚O§, is burned in a bomb calorimeter, the temperature increases from 23.4 °C to 26.9 °C. The heat capacity of the calorimeter and its content is 3.35 kJ/°C. How much heat was produced by the combustion of the TNT sample? O 34.2 kJ O 11.7 kJ O 101.5 kJ

Q: 3. When 1.010 g sucrose (C12H22011) undergoes combustion in a bomb calorimeter, the temperature…

A:

Q: Sand is converted to pure silicon in a 3 step process. The final step in this process is as follows.…

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Q: 8. What is the best fuel? Order the three samples according to the amount of heat released when 1.00…

A: General formula to calculate heat released in a combustion reaction in a calorimeter ----

Q: Calculate the heat of reaction (kJ/mole) using a calibrated calorimeter (-266 J/°C) for a solution…

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Q: 1. How much heat must be added to a 38-g sample of aluminum to increase its temperature by 250.0°C?…

A: Dear student since you have posted multiple questions, As per BARTLEBY QnA guidelines we are allowed…

Q: Write the balanced chemical equation representing the reaction of hydrochloric acid and sodium…

A: In the given question we have to calculate the heat of neutralization in kJ/mole.

Q: How much heat is released when 1.4 moles of hydrogen fluoride are produced? H2 (g) + F2 (g) → 2HF…

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Q: 8. If you add a metal piece with a temperature of 120 °C and a mass of 1.23 g to 100 g of 30 °C…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.29 kg sample…

A: 0.45 or 4.49 * 10-1 J/g K

Q: If 0.067 mol of hydrochloric acid  (HCl)  is mixed with 0.067 mol of sodium hydroxide  (NaOH)  in a…

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Q: 5. A 1.500-g sample of a hydrocarbon is placed in a bomb calorimeter and undergoes combustion. The…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A 6.61g sample of an unknown salt (MM=116.82g//mol) is dissolved in 150.00g water in a coffee cup…

A: GivenMass of unknown salt = 6.61 gMolar mass = 116.82 g/mol

Q: Acetylene is used in welding torches because it has a high heat of combustion. When 2.00 of…

A: Mass of acetylene = 2.00g Molar mass of acetylene = 26 g/mol Moles of acetylene = 2.00g/26g/mol =…

Q: A 5.71 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Given Mass of unknown salt = 5.71 g Molar mass = 116.82 g/mol

Q: In a coffee-cup calorimeter, 120.0 mL of 1.4 M  NaOH  and 120.0 mL of 1.4 M HCL  are mixed. Both…

A: Given : Concentration of NaOH = 1.4 M Concentration of HCl = 1.4 M Volume of NaOH solution = 120.0…

Q: A metal with a specific heat of 0.899 J/g oC had an initial temperature of 76.67 oC. When it was…

A: The heat transferred during the reaction can be determined from the given equation. The temperature…

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.