:An endothermic reaction causes the surroundings to

Q: A student is using calorimetry to determine the heat of solution for various salts. When the student…

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Q: what is the heat evolved

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Q: A heated gas expands and presses on a piston. In this example, work is done: A) By the gas on the…

A: If the gas is heated, it will expand and push the piston up, thereby doing work on thepiston

Q: how many millimoles of ethanol would need to be burned to generate 8370 joules of energy? the heat…

A: Heat of combustion is defined as the heat released when 1 mole of reactant is combusted. Hence, heat…

Q: Which of the following statements is true?  a When heat is absorbed by a system, the reaction is…

A: Which of the following statements is true ?

Q: An automobile engine provides 556 Joules of work to push the pistons. In this process the internal…

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Q: hich of the following is an example of an endothermic process?

A: Exothermic reaction are those in which energy is released and endothermic reaction are those in…

Q: Explain why a calorimeter value can different from expected caloric content in different foods.

A: A calorimeter is a device that measures the change in energy in the form of heat.

Q: n the calorimetry experiment was used to measure the heat of reaction for an endothermic process,…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: a. State the meaning of the following thermochemical equation *b.Calculate the amount of heat…

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Q: Find the heat capacity of the bomb calorimeter?

A: We have to predict the heat capacity of calorimeter.

Q: An automobile engine provides 621 Joules of work to push the pistons. In this process the internal…

A: According to the first law of thermodynamics, the following expression is obtained: ∆U=q+w…

Q: Calculate the heat capacity of your calorimeter. Note that the temperature change of the…

A: Given:Temperature change is same as in cool water.

Q: Draw an enthalpy diagram for a general exothermic reaction; label the axis, reactants, products, and…

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Q: Discuss the definition of the terms exothermic and endothermic. Give an example of an thermochemical…

A: The exothermic reaction is the reaction that releases heat. The heat of the reactant is higher than…

Q: An automobile engine provides 549 joules of work to push the pistons. In the process the internal…

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Q: How to calculate heat capacity in a calorimeter?

A: Calorimeter is defined as the device which implement on thermal temperature of a object by changing…

Q: if the standard heat for hydrogen (H2) is 0, what is the ammount of energy required or released in…

A: Heat of reaction is defined as the heat required or released during a chemical reaction. According…

Q: A chemical reaction is run in which 551 Joules of heat are absorbed and the internal energy changes…

A: First law of Thermodynamics:                                                            ∆U = q+w…

Q: Use the References to access important values if needed for this question. A chemical reaction is…

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Q: A chemical reaction is run in which 389 Joules of heat are generated and the internal energy changes…

A: Given  Q = -389 J (heat is generated) ΔU = -55 J Using first law of thermodynamics  ΔU= Q + W  W =…

Q: References Use the References to access important values if needed for this question. A chemical…

A: Answer is. 232joul

Q: Water (2290 gg ) is heated until it just begins to boil. If the water absorbs 5.15×105 JJ of heat in…

A: Mass of water = 2290g.Heat absorbed by water = 5.15*105J.Boiling temperature of water =…

Q: An automobile engine provides 565 Joules of work to push the pistons. In this process the internal…

A: In this question, we want to determine the amount of heat that must be carried away by the cooling…

Q: A calorimeter is used to measure the enthalpy of a reaction. Label the system and the surroundings.

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Q: When 2.39 g ammonia gas is oxidized over a smooth platinum catalyst to form nitrogen monoxide gas…

A: The reaction for the process is given below : NH3  +  O2  →Pt  NO  +  H2O               ∆H=41.1kJ We…

Q: What is the energy of the reactants?

A: The energy of reactants is defines as the energy of the reaction at time zero.

Q: A chemical reaction is run in which 287 Joules of heat are absorbed and the internal energy changes…

A: The whole energy content of systems is represented by its "internal energy". It varies whenever a…

Q: How can I find heat of formation from the heat of combustion?

A: I have explained it with the example of methane . By the following data we can get enthalpy of…

Q: In the determination of heat of neutralization using a coffee-cup calorimeter, determine the effect…

A: We perform experiment for determination of heat of neutralisation in a insulated medium having…

Q: In order to obtain the largest possible amount of heat from a chemical reaction in which there is a…

A: Endothermic reactions are those reactions where external heat has to be supplied to the reacting…

Q: A chemical reaction is run in which 166 Joules of heat are generated and the internal energy changes…

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Q: Use the data in the following image to answer this question. a.The reaction involved the…

A: Given: HCl is the limiting reagent. Moles of HCl =0.0600 mol ΔT =4.75oC Heat capacity = 3.97 J/g…

Q: When the sign of an energy change is being determined, this would always be with respect to what?

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Q: An automobile engine provides 617 Joules of work to push the pistons. In this process the internal…

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Q: An automobile engine provides 530 joules of work to push the pistons. In this process the internal…

A: Given work done , w= -530 J internal energy change , ∆E = 2915 J By First law of thermodynamics  ∆E…

Q: An automobile engine provides 633 Joules of work to push the pistons. In this process the internal…

A: From first law of thermodynamics, we know :  ∆U = q + w Where ∆U = Change in internal energy. q =…

Q: An automobile engine provides 585 Joules of work to push the pistons. In this process the internal…

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Q: What is the change in internal energy of the system?

A: According to the first law of thermodynamics, the change in internal energy of a system is expressed…

Q: You accidentally forgot to measure the mass of the octane that you transferred in the crucible. You…

A: When octane is burned in calorimeter, energy is released from octane which is absorbed by the water…

Q: What does a high calorimeter constant indicate? What happens to the calorimeter constant if there is…

A: The "calorimeter constant" is just the specific heat of the calorimeter and its thermal…

Q: An automobile engine provides 572 Joules of work to push the pistons. In this process the internal…

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Q: A Bunsen burner is lit in a chemistry lab. The gas used in this reaction is ethane. Identify all the…

A: Bunsen burner is a gas burner used for heating in laboratories. The reaction occurring in a Bunsen…

Q: Determine the enthalpy of the reaction in which sulfur dioxide is oxidized to sulfur trioxide using…

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Q: Compare balls A and B in terms of potential energy in both the initial and final setups. * -Held in…

A: Given,

Q: For the following situation, the system and surroundings are defined for you. Determine whether the…

A: In classical thermodynamics, Anything under observation comes under the system. Anything outside…