which of the ff will always result in an endothermic process a. work done on the system, heaet released by system b. work done on system, heat absorbed by the system  c. work done by the system, heat released by system d. work done by system, heat absorbed by system

Q: The specific heat capacity of a pure substance can be found by dividing the heat needed to change…

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 343. kJ during a…

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

Q: A 1.6 g sample of solid NH4NO3 was added to 27.0 mL of water in a styrofoam cup (insulated from the…

A: The heat gain or loss can be determined by the relation q=mcΔT. Where q is the heat loss or gain, c…

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: An automobile engine provides 623 Joules of work to push the pistons. In this process the internal…

A: Given: Work done = 623 Joules Change in internal energy = -2731 Joules

Q: An automobile engine provides 561 Joules of work to push the pistons. In this process the internal…

A: To solve this question, use the formula which contains q, ∆U, and w in it. Give the signs to the…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 291. kJ during a…

A:

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

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Q: The diagram below shows how a chemical reaction in a cylinder with a piston that affects the volume…

A: a)Here after the reaction the volume is decreasing. That is Vfinal < V initial.Since the work is…

Q: The evaporation of water is endothermic H2O(l)+44.01kj------>H2O(g) If 275kj of heat is absorbed,…

A: Given reaction,      H2O(l) + 44.01kj → H2O(g)   Calculate the moles of H2O evaporated,         275…

Q: Calorimeter Y has a greater heat capacity than Calorimeter Z. What does this imply? Select one: O a.…

A: Given heat capacity of calorimeter Y is greater than calorimeter Z

Q: Which of the following is an endothermic process? a. work is done by the system on the surroundings…

A: Introduction :  We have to tell which of the following is endothermic process .

Q: For an exothermic reaction, how is the measured temperature change affected if some of the heat…

A: The amount of heat involved in a chemical of physical process is measured using the device called…

Q: Which of the following is an endothermic process? O a. heat energy is evolved by the system b. none…

A: In endothermic reaction heat is provided to perform a reaction and enthalpy change for a endothermic…

Q: A 1.96 g sample of titanium was burned in a bomb calorimeter. The bomb calorimeter has a heat…

A: The solution is as follows :

Q: The specific heat capacity of benzene (C6H6) is 1.74J/g.K. How much energy is required to heat 168g…

A: Specific heat   Specific heat of a substance is defied as the amount of the heat is used to increase…

Q: (a) What is meant by the term standard conditions with referenceto enthalpy changes? (b) What is…

A: a) Standard conditions with respect to the enthalphy of changes would be the enthalphy that is…

Q: Which of these descriptions of heat energy is not correct?a. Heat energy flows between objects that…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: What is meant by the specific heat capacity of an object

A: To define the specific heat capacity of an object.

Q: What statement is False? A). in an endothermic process, heat is transferred from the surroundings…

A: *Statement-A The reaction in which heat is released from system to surrounding is called exothermic…

Q: A 534.2 g sample of water is subjected to a temperature change of -67.86 °C. The specific heat…

A: Given,  Mass of water in g = 534.2 g  Change in temperature = ΔT = -67.86 0C  Specific heat capacity…

Q: What is energy? What is work? List some examples of each.

A: Energy and work are two important parametetrs to define the state of a system. In fact of energy is…

Q: A sample of 23.9g of ammonium nitrate, NH&NO3. was dissolved in 133.8 g of water in a coffee cup…

A: Given Mass of NH4NO3 =m = 23.9 gMass of water = Mw = 133.8 gInitialTemperature = T1 = 28.1°CFinal…

Q: An automobile engine provides 628 Joules of work to push the pistons. In this process the internal…

A:

Q: An automobile engine provides 628 Joules of work to push the pistons. In this process the internal…

A: According to first law of thermodynamics , energy can neither be created nor destroyed it can change…

Q: Which term is not correctly matched? endothermic - energy is absorbed universe - system plus…

A:

Q: Which of the following is/are TRUE for an endothermic process in an open or closed system? I. The…

A: We have to tell which statement is true.

Q: A beaker contained 69.68 g of water at 15.25°C. A 81.2-g sample of metal at 52.22°C was placed in…

A: Given that : The mass of water (mw)= 69.68 g Temperature of water = 15.25°C The mass of sample (mm)…

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: An automobile engine provides 501 Joules of work to push the pistons. In this process the internal…

A: According to the first law of thermodynamics: ∆U=Q + W where, ∆U=Change in internal energy Q= Heat…

Q: The work done when a gas is compressed in a cylinder is 455 J. During this process, there is a heat…

A: To find the energy change, we need to use the formula which contains change in energy, work done and…

Q: What sum determines the change in energy of a system? O heat released and work performed O heat…

A: A process in which heat energy is transferred from a system to the surroundings is referred as…

Q: Cite an analogy that best interpret ENTHALPY

A: ANSWER IS

Q: An automobile engine provides 623 Joules of work to push the pistons. In this process the internal…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For a…

Q: What is FALSE regarding the laws of thermodynamics? Select one: a. Energy can be neither created nor…

A: Temperature, energy, and entropy are only a few of the physical parameters that the rules of…

Q: elect the ???? description about the second law of thermodynamics. *       A. Measure of the…

A: Second law of thermodynamics is given because as per first law energy can be converted from one form…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 160. kJ during a…

A:

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

A:

Q: What is the working definition of enthalpy change?     A)  The change in energy that occurs when…

A: Enthalpy change (∆H) is a state function.

Q: What thermochemical processes are observed every day? 2. How is heat related to changes in…

A: 1. What thermochemical processes are observed every day?2. How is heat related to changes in…

Q: b. ,mass 4. If a pool and a cup of water had the same temperature, which would have greater therma…

A:

Q: [11] A 10.00 g sample of a metal alloy was heated to 88.99 °C. It is then quickly dropped into 40.0…

A:

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: Which of the following statements is CORRECT? a. Heat exchange is positive for an exothermic…

A: In exothermic reaction, product is more stable than reactant where in endothermic reaction, reactant…

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

A:

Q: Which statement is incorrect? Energy is the capacity to do work or to transfer heat. O Kinetic…

A: There are various forms of energy.  The law of conservation of energy states that energy is neither…

Q: 2. A 4.348 g sample of NaOH(s) is dissolved in 100. g of water in a calorimeter, the temperature…

A: In this question we have to calculate the heat of Reaction by the given data of the calorimeter.

Q: What is heat? How does heat differ from thermal energy? Under what condition is heat transferred…

A: Heat: Heat is a form of energy that is transferred from one body to another because of difference in…

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

A: