A101.6gram sample of an unknown metal at83.0°C was mixed with318.0grams of 20.1°C water in a coffee-cup calorimeter. The temperature of the mixture equilibrated at32.8°C. What is the specific heat of this metal in calories/(g°C)? calories/(g°C) i

Q: A198.7gram sample of an unknown metal at84.3°C was mixed with318.5grams of 20.7°C water in a…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.63 kg sample…

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Q: A silver cube with an edge length of 2.35 cm2.35 cm and a gold cube with an edge length of 2.63…

A: Edge length of Silver cube = 2.35 cm Edge length of Gold cube = 2.63 cm Initial Temperature of Ag…

Q: A sample of toluene undergoes combustion in a bomb calorimeter that is insulated by 814 g of water…

A: Given: Mass of water = 814 g. Heat capacity of calorimeter = 1015 J/oC And the increase in the…

Q: The combustion of 1.00 mol of glucose (C6H12O6) liberates 2820 kJ of heat. If 1.13 g of glucose is…

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Q: heat (

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Q: A 53.33 gram sample of iron (with a heat capacity of 0.450 J/gºC) is heated to 100.0 ºC. It is then…

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Q: An unknown metal has a mass of 34.0 g.34.0 g. When 903 J903 J of heat are added to the sample, the…

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Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: Molar heat of combustion indicates the amount of heat released as a result of the combustion of one…

Q: In the following experiment, a coffee-cup calorimeter containing 100 mLmL of H2OH2O is used. The…

A: Heat of solution of calcium chloride = -82.8 kJ/mol which means one mole of calcium chloride on…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C). How much heat…

A: Answer :-  5.88 × 105  The amount of heat energy needed to raise the temperature of 2.00 kg of…

Q: A dilute solution of hydrochloric acid with a mass of 606.87 g and containing 0.31625 mol of HCl was…

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Q: When 20.0 g of aqueous solution B(aq) at 22.0°C is added to 60.0 g of aqueous solution A(aq), also…

A: Given that,The mass of the aqueous solution of B is 20.0 g.The mass of the aqueous solution of A is…

Q: A 112.45 mL sample of 0.279 M aqueous hydrochloric acid is added to 103.01 mL of 0.284 M aqueous…

A: Given,Molarity of HCl = 0.279 Mvolume of HCl = 112.45 mLMolarity of NH3 = 0.284 Mvolume of NH3 =…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C). How much heat…

A: Given data :: Cp of cooking oil = 1.75 J g-1℃-1 q= ? m=2.08 Kg = 2080 g T1=23 ℃  T2= 191℃

Q: An electrical heater is used to add 18.50 kJ of heat to a constant-volume calorimeter. The…

A: The values are given as follows:

Q: Methanol, CH3OH, is a possible fuel for automobiles. Energy is evolved in its combustion with…

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Q: A 21.3 mL sample of 0.997 M NAOH solution is mixed with 29.5 mL of highly concentrated HCI in a…

A: Given : Volume of HCl solution = 29.5 mL Volume of NaOH solution = 21.3 mL = 0.0213 L…

Q: Calculate the heat (in kJ) for a 2.80 kg system changing temperature from 85.0 oC to 10.0 oC? The…

A: The heat is to be calculated

Q: Using the following reaction, determine the value of q (kJ) when 10.00 grams of sulfur trioxide is…

A: Given2 SO2(g) + O2(g) ⟶ 2 SO3(g)     ΔH=−197.86 kJMass of SO3 = 10.0 gMolar mass of SO3 = 80.06…

Q: The temperature of a sample of aluminum increased by 22.4 °C when 275 J of heat was applied. What is…

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Q: When 60.0 mL of a 0.400 M solution of HN03 (ag) is combined with 60.0 mL of a 0.400 M solution of…

A: The volume of the final solution is = 60.0 mL + 60.0 mL = 120.0 mL The density of the solution is =…

Q: When 2.25 g of sodium hydroxide (NaOH) was dissolved in 100.00 g of water a value of 10.00oC was…

A: The heat of the solution produced when 2.25 g of sodium hydroxide is dissolved in 100 g of water, is…

Q: A 0.565-g sample of 9,10-phenanthrenediol (C₁4H₁002) is burned in a bomb calorimeter and the…

A: In the given question we have to calculate the  for the given reaction.The formula used in the given…

Q: he specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C).  How much heat…

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Q: Nitromethane (CH3NO2), sometimes used as a fuel in drag racers, burns according to the following…

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Q: A 2.62E1 g sample of aluminum at 1.008E2 °C is added to 1.002E2 g of water at 2.22E1 °C in a…

A: For a chemical reaction or physical process to occur a certain amount of energy should be furnished…

Q: cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C). How much heat energy is needed to raise the temperature…

A: Heat of reaction is difference of energy of product  and energy of Reactant. If heat of reaction is…

Q: When 2.07 g of NaCl are added to 114 g of water in a constant pressure calorimeter, the temperature…

A: Here we are required to find the Enthalpy change for the dissolution of NaCl in water.

Q: -1 1 A 28.0 g sample of brass, which has a specific heat capacity of 0.375 J.g .°℃ is dropped into…

A: The objective of this question is to calculate the equilibrium temperature of the water when a brass…

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.