Why is it meaningless to speak of the heat possessed by a system?

Q: A system gains 727 kJ of heat, resulting in a change in internal energy of the system equal to +151…

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Q: How do we define a system? What is the difference between a system and its surroundings?

A: Given question is : Define system = ?  And What is the difference between a system and its…

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: A chemical reaction is run in which 345 Joules of heat are generated and the internal energy changes…

A: The relationship between heat, internal energy change and work is given by  ΔE = q + w  where ΔE…

Q: Change in internal energy is a state function while work is not, why?

A: Change in internal energy is a state function while work is not, why?

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

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Q: Define the term Heat Capacity?

A: Concept introduction: Heat is arises by difference in the temperature of an object and it is also a…

Q: 4. A system absorbs 471 J of and gains 124 of energy what is the work done by the system?

A: First law of thermodynamics states that energy neither be created nor distroyed

Q: FR ön the surroundings heat and has work done on it by the surroundings heat and does work on the…

A: Internal energy(E) is the total energy of system. It can be changed by work and heat, ∆E = q + w  To…

Q: 1. ransferred from one system to another spontaneously? What is heat? How does heat differ from…

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Q: A 52.7 g. piece of an unknown metal is heated up 51.4 °C when given 3492 J of heat.  What is the…

A: Formula : Heat, q = msΔT     3492 = 52.7 x s x 51.4   s = 1.289 J g-1 °C-1 Here s is specific heat…

Q: mass of metal=56.100g mass h2o=82.69g ti water=20.9c ti metal=92.7c tf metal and water=25.5c ^t of…

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

Q: A chemical reaction is run in which 209 Joules of heat are generated and 540 Joules of work are done…

A: According to first law of thermodynamics change in internal energy is equal to sum of change is heat…

Q: The gas in a piston (defined as the system) is warmed and absorbs 645 J of heat. The expansion…

A: Given:Heat absorbed = 645 JWork performed =  340 JWhat is the change in internal energy ?

Q: If a system has 4.50×102 kcal of work done to it, and releases 5.00×102 kJ of heat into its…

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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: Why heat capacity is so important in our everyday life? please give an examples.

A: Heat capacity is the amount of heat required in Joules by one gram of substance to raise its…

Q: In a calorimetry experiment, a 22.5 gram metal object was heated to 64.23oC. It was placed into a…

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Q: What are the two main components of the internal energy of a substance? On what are they based?

A: The two main components of the internal energy of a substance has to be given.

Q: Enthalpy is a state function. What does it mean to be a state function?

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Q: If a system has 425 kcal of work done to it, and releases 5.00×102 kJ of heat into its surroundings,…

A: Convert the unit of work done to kJ:

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: A system gains 767 kJ of heat, resulting in a change in internal energy of the system equal to +201…

A: Find the solution below

Q: What is the difference between specific heat and heat capacity?

A: Heat Capacity:- It is the minimum amount of heat required to a given mass of a sample to raise the…

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: Explain the difference between heat capacity and specific heat.

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Is internal energy a state function?

A: Energy is the capability of doing work.

Q: llus_engine.html?ClassID=1834324617# 9H₂0 +9cal = 2020 J qunknown = -2020 J The thermal energy comes…

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Q: When thermal energy is transferred from the system to its surroundings, heat (q) is:

A: When thermal energy is transferred from the system to its surroundings, heat (q) is negative  It is…

Q: Find the value of internal energy if the system absorbed 534J of heat energy and 356 work is done on…

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Q: Define about Heat Capacities ?

A: Amount of heat required to raise the temperature of a substance by 1oC is known as heat capacity.…

Q: A chemical reaction is run in which 152 Joules of heat are generated and 461 Joules of work are done…

A: Given: In a chemical reaction 152 Joules of heat are generated and 461 Joules of work are done by…

Q: A chemical reaction is run in which 460 Joules of heat are absorbed and 555 Joules of work is done…

A: Given: Amount of heat absorbed = 460 Joules Work done by the system = 555 Joules We have to…

Q: f surroundings of _________ system are cooler than the system itself then transfer of heat will be…

A: The system consists of those molecules which are reacting. The surroundings are everything else; the…

Q: NaOH N: КОН H,O, heat D,0 NEt,, heat

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Q: A gas absorbs 188 J of heat and then performs 310 J of work. The change in internal energy of the…

A: In chemistry, the term internal energy for a given system can be defined as the energy which is…

Q: A chemical reaction is run in which 484 Joules of heat are generated and the internal energy changes…

A: The amount of heat is released by the reaction is = 484 J The change in the internal energy of the…

Q: Differentiate between potential energy and thermal energy? Give some examples?

A: Potential energy is the energy possessed by a body or an object due to its position. It is stored in…

Q: A chemical reaction is run in which 248 Joules of heat are absorbed and 720 Joules of work is done…

A: Given,                Heat absorbed by the system  = 248 Joules                Work done on the…

Q: Explain following terms:     1)Heat 2) Heat capacity 3) Specific heat capacity

A: 1. Heat  The energy transferred between two objects at two different temperatures when placed near…

Q: During a certain chemical reaction 255 J of heat is absorbed by the system and 275 J of work is done…

A: To Solve this problem we will use the first law of thermodynamics .

Q: - A 150 g sample of metal at 75 °C is added to 150 g water at 15°C. The temperature of the water…

A: Given data   metal water mass 150 g 150 g t1 75 oC 15 oC t2 18.3 oC 18.3 oC   specific…

Q: How is the change in internal energy of a system related to heatand work?

A: Introduction: Internal energy: Internal energy of a system is defined as the total energy contained…

Q: If energy flows into a chemical system and out of the surroundings, what is the sign of ΔEsurr?

A: Given that,  Energy flows into a chemical system and out of the surroundings

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: A 0.491 kg sample of an unknown metal loses 4.08 kJ of heat. If the change in its temperature was…

A: Using the formula Q=mCΔT we can find specific heat capacity.

Q: The heat of combustion of butane is -2877 kJ/mol. Use this value to find the heat of formation of…

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