work performed

Q: A chemical reaction is run in which 138 Joules of work is done by the system and the internal energy…

A: Work done by the system is negative. So we use W= -138 J  Given: w= - 138J              ∆u= + 14J To…

Q: What is the value of the work for a system if the work done by the system is it expanding from 8.50…

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Q: The value ofE for a system that performs 111 kJ of work on its surroundings and gains 89 kJ of heat…

A: According to the sign conventions, Work done by the system is taken as negative. Heat gained by the…

Q: A certain gas expands in volume from 2.0L to 24.5L at a constant temperature. Calulate the work done…

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Q: An experimenter adds 980 J of heat to 1.75 mol of an ideal gas to heat it from 10.0 ∘C to 25.0 ∘C at…

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Q: A mixture of nitrogen and argon gas is compressed from a volume of 15.0L to a volume of 11.0L, while…

A: From thermodynamics, work done is calculated as: w = -PΔV   Or, w = -P(Vf-Vi)   where Vf and Vi are…

Q: Based on the formula for pressure-volume work,  if work is done on the system by the surroundings,…

A: Given information,            Work is done on the system by the surroundings. The pressure-volume…

Q: If we define the system as the reactants and products, what is the sign of work in this process,…

A: According to the first law of thermodynamics, the internal energy of a system can be changed by…

Q: Calculate internal energy from heat and work and state the signconventions of these quantities?

A: First law of thermodynamics: According to first law of thermodynamics, total internal energy of…

Q: f 112g of water at 54oC is mixed in a calorimeter with a 95g sample iron at 139oC, what is the final…

A: Given data: Mass of water(m1) = 112 gms       Its temperature(T1) = 54°C Mass of iron(m2) = 95 gms…

Q: Determine whether work is positive or negative or zero for the following chemical process assume the…

A: For the reaction ∆n = 0  means as 2 mole of gas is forming 2 moles of gas.

Q: A gas does 135 J of work while expanding and, at the same time, absorbs 156 J of heat. What is its…

A: Given,  A gas does 135J work while expanding and absorbs 156J of heat. The change in Internal energy…

Q: air in an infiated balloon in car on hot summer day absorbs As it expands, it does 2. of work. First…

A: Given work done is 77KJ

Q: When 1 mol of a gas burns at constant pressure, it produces2418 J of heat and does 5 J of work.…

A: When a gas burns at constant pressure we have P = constant. So, Pext = P of the gas container We…

Q: Consider a balloon filled with 2115 L of helium at 1.00 atm pressure and 45.5°C. The temperature of…

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Q: During a breath, the average human lung expands about 0.50L. If this expansion occcurs against an…

A: Work in thermodynamics is the amount of energy that is transferred from one system to another system…

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 20.0atm. Calculate…

A: Given: Initial Volume V1 = 1.0 L Final Volume V2= 20.0 L External pressure P = 1.0 atm

Q: An ideal gas system gains 118 kJ of heat and does 230 kJ of work on the surrounding. Calculate…

A: Amount of heat gained (q) = +118 KJ q is positive as heat is gained. Work in this case is done by…

Q: A rubberized sphere contains carbon dioxide. If the initial radius of the sphere is 15cm: a. How…

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Q: A chemical reaction is run in which 756 Joules of work is done on the system and the internal energy…

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Q: If the system is defined as a gas in a container, then a decrease in internal energy of the system…

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Q: A mixture of krypton and oxygen gas is expanded from a volume of 31.0L to a volume of 87.0L, while…

A: Work done = P(V2-V1)  where P = pressure , V2 = final volume , V1= initial volume

Q: The AH° of the reaction is -1367 kJ. Calculate the work done on the system at 25°C. C2H5OH(1) +…

A: Work done (w) : w = -∆ngRT  w = - ( 2 - 3) x 8.314 x 298  w = 2477.572 J w = 2.48 kJ

Q: A chemical reaction is run in which 572Joules of work is done on the system and the internal energy…

A: Given W = + 572 J (work is done on the system) ΔU = +438 J Using the first law of thermodynamics…

Q: A certain gas expands in volume from 2.0 L to 24.5 L at constant temperature. Calculate the work…

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Q: Calculate the work done (J) by 4 mole of an O,(g) when it expands reversibly at a constant pressure…

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Q: The average human lung expands by about 0.50 L during each breath. If this expansion occurs against…

A: In the case of expansion, the system loses energy to the surroundings so work done by the system is…

Q: The gas mixture inside one of the cylinders of an automobile engine expands against a constant…

A: Work done by a gas against a constant external pressure is given by the expression, W=-Pext∆V

Q: Which condition results to work done greater than the change in internal energy? AU > 0; AS > 0 Ο Δυ…

A: Here we have to verify options and check by the help of first law of thermodynamics.

Q: Calculate w for a system that absorbs 260 kJ of heat and for which ∆E is 157 kJ. Is the work done on…

A: The First law of Thermodynamics states that, ∆E=Q+W where, '∆E' is the change in internal energy of…

Q: b. Five moles of an ideal gas expand reversibly and isothemally from a pressure of 20 atm to 5 atm…

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Q: Submit A system expands from a volume of 1.00L to 2.00 L against a constant external pressure of…

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Q: a balloon filled with ammonia gas is injected with water. the balloon feels warm to the touch and…

A: Sign convention heat released = positive heat absorbed = negative

Q: Fonsi Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume…

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Q: A sample of helium behaves as an ideal gas as it is heated at constant pressure from 273 K to 356 K.…

A: Given- Gas behaves as an ideal gas  Initial temperature =273K Final temperature =356K Change in…

Q: 230 BTUs are absorbed by a gas while the gas expands and perform 610 BTUs of work. Calculate the…

A: Given: Heat absorbed by the gas = 230 BTUs  And the amount of work done by the gas = 610 BTUs.

Q: A 7.24-g sample of ethane occupies 4.65 L at 294 K. (a) Calculate the work done when the gas expands…

A: Isothermal is process done under constant temperature.

Q: A steel cylinder of 10 liters capacity contains 20 moles of oxygen at 27°C. An imperfection in the…

A: The work done by gas can be calculated by using formula of work done i.e W= -P(Vf- Vi)  Where w…

Q: numerical question The complete combustion of candle wax (C31H64) in oxygen produces CO, and liquid…

A: Combustion is a highly exothermic process. The work done in a system containing gases is usually…

Q: Write an equation that expresses the first law of thermodynamics in terms of heat and work.

A: The First Law of Thermodynamics states that energy can be converted from one form to another with…

Q: Why is the work done when a system expands against a con-stant external pressure assigned a negative…

A: In thermodynamics, pressure volume work is done when the pressure is applied on the system to change…

Q: (2.2) Gas in a container is at a pressure of 1 atm and a volume of 6 m3. What is the work done by…

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Q: consider a mixture of air and gasoline vapor and a cylinder with a piston and an original volume of…

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Q: Example Calculate the work (in J) associated with the expansion of a gas from 44 mL to 63 mL at a…

A: According to the irreversible isothermal expansion of ideal gas, w = -P2 (V2 - V1) where, w is work…

Q: Calculate the work done when 1.0 mol of an ideal gas reversibly expands from 1.0 L to 10.0 L at 298…

A: In thermodynamics work performed by a system is energy transferred by the system to it's surrounding…

Q: A sample of an ideal gas at 24.9 atm and 15.4 L is allowed to expand against a constant external…

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Q: 1. Calculate w for a system that absorbs 260 kJ of heat and for which AE = 157 kJ. Is the work done…

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Q: Calculate the work done ( in joules) when a perfect gas in a piston chamber expands from 2.00 L to a…

A: Pressure ( P ) = 1.75 atm Initial volume ( V1 ) = 2.00 L  Final volume ( V2 ) = 5.50 L  ΔV  = V2 -…

Q: What is the work performed by a gas if it expands from 4.44 L to 6.19 L against a constant external…

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