as system increases in. volume, it absorbs 59.0 J of energy in the form of heat from the surroundings. the piston is working against a pressure of 0.537 atm. the final volume of the system if 56.5 L. what was the initial valume of the system if the internal energy of the system decreased by 107.7 J?

Q: Match each of the following with its correct answer Consider the following thermochemical equation:…

A: (1) Consider the given thermochemical equation is as follows; Reaction:       2 NO g    +    O2 g…

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Q: 7. A gas expands against a variable opposing pressure given by p = 10/V atm; where V is the volume…

A:

Q: 5.60 How are the standard enthalpies of an element and of a compound determined?

A: The standard enthalpies of an element and of a compound have to be determined.

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A: “The relationship between heat with other forms of energy like light, mechanical work is studied…

Q: When 0.865 g sample of cyclohexane (molar mass = 84.16 g/mol) is burned in a bomb calorimeter, the…

A: The reaction of the combustion of cyclohexane is: C6H12(l)+9O2(g)→6CO2(g)+6H2O(l) Calculation of ∆H˚…

Q: 7. The temperature of a 95.4 g piece of copper increases from 25°C to 48°C when the copper absorbs…

A: Specific heat of a chemical compound is the amount of heat which is used to increase the temperature…

Q: Consider the following thermochemical equation: 4 Al(s) + 3 O₂(g) → 2 Al2O3(s) AH = -1676 kJ How…

A: From balanced reaction 4 mole of aluminium react with oxygen and produced two mole Al2O3

Q: 6.37 Find q when 22.0 g of water is heated from 25.0°C to 100.°C.

A: We have to determine the amount of heat when temperature is increased of 22g water from 25°C to…

Q: True or False? Because a state function depends on the current equilibrium of the system, a set of…

A: True.

Q: the overall reaction in a commercial heat pack can be represented as

A: As per guidelines if multipart question , first three (a, b and c) are allowed t answer , please…

Q: One tablespoon of peanut butter has a mass of 17 g. It is combusted in a calorimeter whose heat…

A: Given, Mass of peanut butter = 17 gm Temperature rise from 22.4◦ c to 25.2◦ c Heat capacity of…

Q: 1. A gas is expanding against a constant pressure of 3 atm and volume of 18.0 L to 23.0 L and…

A:

Q: heat produced

A:

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

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Q: %24 When 21.6 mL of 0.500 M H,SO, is added to 21.6 mL of 1.00M KOH in a coffee-cup calorimeter at…

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Q: 9.2  An automobile engine provides 566 Joules of work to push the pistons and generates 2142 Joules…

A: In this question, we will calculate the change in internal energy ( ∆E ) of the system.  You can see…

Q: For a certain chemical reaction, the AH of enthalpy is 232.4 kJ per one mole of reactant X. If 3 mol…

A: Enthalpy is the heat content of the system. For a reaction,change is energy is called enthalpy of…

Q: 6. Calculate the enthalpy change of the following reaction between nitrogen gas and oxygen gas,…

A: From given set of equations , we need to find the final eqution for nitrogen and oxygen. To get this…

Q: 2. a. Determine the standard heat of formation. AH* for the following reaction using the Data table.…

A: The standard heat of reaction is calculated as below:

Q: (1) Calculate the heat capacity (Ccal) for the calorimeter done in the lab, part 4. All of the heat…

A: The objective of this question is to calculate the heat capacity of a calorimeter using the given…

Q: A 36.0 g sample of an unknown metal at 99.0 °C was placed in a constant-pressure calorimeter…

A: Given -->  Mass of sample = 36 g Temperature at which placed = 99°C Mass of water = 60 g…

Q: Why not all endothermic processes that do work on the surroundings have the same sign for internal…

A: Endothermic processes are the processes which absorb heat energy from the surroundings. These…

Q: Calculating a Heat of Formation Using Hess’s Law As discussed in lecture, the simplest and most…

A: #1: The true value of ∆Hfo = -601.8 kJ/mol  Experimental value of  ∆Hfo = -569 kJ/mol

Q: What is the specific heat capacity (in units of J/g. °C) of a given metal if 24.8 grams of it…

A: Mass (m) = 24.8 g Heat absorb (q) = 275 J Initial temperature (T1) = 20.2°C Final temperature (T2) =…

Q: When 0.865 g sample of cyclohexane (molar mass = 84.16 g/mol) is burned in a bomb calorimeter, the…

A: The given mass of cyclohexane = 0.865 g Molar mass of cyclohexane = 84.16 g/mol The number of moles…

Q: Which of the following descriptions and/or equations best represent the enthalpy change of a system?…

A: Given statements,(A) The sum of the internal energy and the pressure-volume product of a system.(B)…

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: P4.33 If 4.206 g of ethanol, C2H5OH(1) is burned com- pletely in a bomb calorimeter at 298.15 K, the…

A: A). Given: The given mass of ethanol, (m) = 4.206 g The molar mass of ethanol, (M) = 46.07 g/mol.…

Q: 3. 842 J of works was done for a gas to be compressed. At the same time, it releases 451 J of heat.…

A: Given -> Work = +842 J ( work done on the system) Q = -451 J ( heat released)

Q: 8. The heat of combustion of propane gas is measured in a copper bomb calorimeter. The copper bomb…

A: Answer:The law of conservation of energy states that energy cannot be created noe destroyed. It can…

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: The enthalpy of reaction is -11.7 kJ/mol for the following reaction:   HCN(aq) + NaOH(aq) -->…

A:

Q: A human with a mass of 65 kg produces 10. MJ of heat every day through metabolic activity. 1. The…

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Q: Enter your answer in the provided box. In a gas expansion, 81 J of heat is absorbed from the…

A: The amount of heat absorbed from the surroundings is .The energy of the system decreases is…

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

A:

Q: the specific heat capacity of silver is 0.24 j/oC g a. calculate the energy required to raise the…

A: a. Energy required to raise the temperature of Ag can be written as, Q=ms∆T m= mass of Ag = 158g…

Q: According to the following thermochemical equation, if 1.902 kg of NO2 is produced, how much heat is…

A: The thermochemical equation given as, => 2 NO (g) + O2 (g) ---> 2 NO2 (g)…

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: 1. A 275 J of work is done on a system that evolves 90 J of heat to the surroundings. a. What is the…

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Q: 12. The standard enthalpy of formation, ΔHfº, for which of the following is zero? a)  F2(g) c)…

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Q: The enthalpy of reaction is -11.7 kJ/mol for the following reaction:   HCN(aq) + NaOH(aq) -->…

A: Given :  Mass of HCN = 0.899 g  Enthalpy of reaction = -11.7 KJ/mol  Total Mass in the calorimeter =…

Q: What is the change in internal energy for a system undergoing an endothermic process in which 29.2…

A:

Q: The enthalpy of reaction is -11.7 kJ/mol for the following reaction:   HCN(aq) + NaOH(aq) -->…

A: Given : Enthalpy of reaction =  -11.7 kJ/mol  Reaction given as : HCN(aq) + NaOH(aq) --> H2O(l) +…

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

A: