An instrument consisting of electric motor and a battery produced 25 kJ of work and lost 10 kJ as heat to the surrounding during 10 minutes of work. Considering this instrument as a closed system, calculate change of its internal energy, U, during this period

Q: The complete combustion of solid fumaric acid, HOOCCH=CHCOOH, in a bomb calorimeter released 1333 kJ…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 10. A closed system which creates work done by expansion is 50 km and decrease internal energy is…

A: Given: The work done by the closed system by expansion is 50 kJ. The internal energy is decreased to…

Q: 8. Calculate the E for a system undergoing an exothermic process in which 10.3 kJ of heat flows and…

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Q: Instead of cooling at constant pressure, if ‘X’ was expanded reversibly and at a constant…

A: Given - Mass of the ideal gas X = 1100 grams Molar mass of the ideal gas X = 28 g.mol-1 Specific…

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: Discuss the statement that a system and its surroundings are distinguished by specifying the…

A: By definition, a system is generally any collection of material or space that are similar or…

Q: Use the thermodynamic table to solve AS",00 for 2C0(g) + O,(g) → 2CO,(g). (a) First perform the…

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Q: A closed, but not isolated system is in thermal contact with its surroundings. The system's volume…

A: The system and the surroundings are in thermal contact with each other, as per the given scenario.

Q: An average human produces about 10 MJ of heat each day through metabolic activity. If a human body…

A: According to the equation: Temperature rise can be calculated as:

Q: To properly determine the internal energy of combustion methylhydrazine, the calorimeter was first…

A: Given the temperature change, ∆T = 1.98 K Mass of sucrose ignited = 0.4500 g  Molar mass of sucrose…

Q: A typical human produces about 10 MJ of energy transferred as heat each day through metabolic…

A: According to the equation: Temperature rise can be calculated as:

Q: true or false Internal energy of the system is composed of two state functions called heat and…

A: According to first law of thermodynamics difference in heat and work gives the change in internal…

Q: For the following processes, calculate the change in internal energy of the system expressed in kJ…

A: According to first law of thermodynamics     ∆U =q +w    Where ∆U is change in internal energy,…

Q: The change in internal energy, AE, of a closed system is equal to the heat flow, q, for a process…

A: A question based on thermodynamic laws.

Q: An electrical heater delivers 6.800 kJ of energy (as heat) to a system consisting of the gas inside…

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

Q: Calculate the heat absorbed and the work done on a system of 5.00 mol of an ideal gas as it expands…

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Q: A calorimeter is a well insulated container that can be used to measure heat changes in a process.…

A: Heat capacity is equal to the amount of heat required to raised the temperature by 1oC of 1g of…

Q: What is the reletionship between internal energy, heat capacity and enthropy?

A: The amount of energy required to increase the temperature of a substance by one degree celsius is…

Q: 1 mole of an ideal gas has a volume of 102m3 and a temperature of 290K . Its volume is compressed to…

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Q: 2mol ideal gas at 50oC temperature is available in an isolated system. By reducing the temperature…

A: The expression for heat change in a process is: q = m X c X (Final temperature - Initial…

Q: An average man weighs about 70 kg and produces about 10460 kJ of heat per day. Suppose that a man…

A: Solution                                Given that  Here average man weighs (m) = 70 kg q = 10460 kJ…

Q: If the calorimeter undergoes a heat change (qcal) of 479.08 and the temperature of the calorimeter…

A: q c a l = C × Δ T   change in heat = qcal = J Temperature change = ∆T =ºC.   Heat capacity = C =  J…

Q: A thermodynamic process is specified by specifying the initial state and the final state of the…

A: A system can change from one state to another in any way. Meanwhile, a change in any one of the…

Q: 1. A chemical reaction takes place in a container fitted with a piston of cross-sectional area 75.0…

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Q: elationship between heat transfer and change in temperature is given by Q = , where c is specific…

A: Applying concept of open system.

Q: Understanding the definitions of heat and work 1/5 KYLA V A mixture of gaseous reactants is put into…

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Q: The Debye temperature of LiCl, OD, is 425K, calculate its molar heat capacity, Cy, at 5 K and at 500…

A: The Debye temperature of LiCl(QD) = 425 K

Q: A sample of solid benzoic acid (C,H;COOH) that weighs 800 g is burned in an excess of oxygen to…

A: (a) The balanced chemical equation for the combustion of benzoic acid is as follows:

Q: Calculate ΔStot when two iron blocks, each of mass 10.0 kg, one at 100 °C and the other at 25 °C,…

A: Given: The mass of each iron block is 10.0 kg. The temperature of each iron block is 100°C and 25°C.…

Q: 1.) 3 BTU OF HEAT ENERGY WAS REMOVED FROM A SYSTEM. THE SYSTEM WAS COMPRESSED AT A CONSTANT PRESSURE…

A: Given that: pressure = 1770.8 torr Volume, V1 = 1000mL Volume, V2 = 12.15gallons To find: work…

Q: increases

A: According to the question, we need to determine the false statement.

Q: We can calculate the heat capacity (C) of the calorimeter by measuring the change in heat qcal and…

A: The term heat capacity can be defined as the physical property of the given matter which is equal to…

Q: Suppose a 1.0 kW kettle contains 10 kg of water and is turned on for 100 s . By how much does the…

A: The mass of the water = 10 Kg  Time = 100 s Power = 1 KW  The energy can be calculated as follows:…

Q: Gas in a piston chamber kept in a constant-temperature bath at 25.0°C expands reversibly from 25.0…

A: Given that -  Temperature = 25°C = 298 K  Initial volume, V1 = 25.0 mL  Final volume , V2 = 75.0 mL…

Q: 2) A dog's bowl with 1000 g of water was left out overnight in the South Valley last night, when the…

A: Solution - Enthalpy - Enthalpy is  the sum of the internal energy and the product of the pressure…

Q: A chemical reaction involving gases takes place in a vessel fitted with a movable piston. The…

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Q: For an ideal gas if the specific internal energy at a specific pressure and temperature of 20 C is…

A: Given for an ideal gas the specific internal energy at specific pressure and temperature of 20 0C is…

Q: 4. In an isobaric process, the heat received by any system is converted to work. 5. A system…

A: 4. False,  (Isothermal process) 5. True 6. False,  (Adiabatic wall) 7. True

Q: The relationship between heat transfer and change in temperature is given by Q = mcAt, where c is…

A: Given :-  Q = mc∆T  c = specific heat capacity  To determine :-  conditions under which c = Q

Q: One mole of water evaporates at 100oC against an atmospheric pressure of 100.0 kPa. Calculate the…

A: 100 KPa = 1 atm  T =  273+100 = 373 K  no. of moles , n=1 Assuming ideal gas behaviour ,  PV=nRT V =…

Q: What is the molar specific heat of a isothermal & adiabatic process ?

A: Specific heat can be defined as

Q: Using the above data, the experimental molar enthalpy of combustion of sucrose is calculated to be:…

A: Given: Also we know,  specific heat capacity of water, c= 4.18J/g/∘C Mass of sucrose burned, M=…

Q: What is the change in internal energy of the system (AE) if 25 kJ of heat energy is evolved by the…

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Q: For the combustion of 1.00 mol of toluene, C7H8 , at 25 °C and 1.00 bar, calculate the work that…

A: Given that : The moles of toluene = 1.00 mol Temperature = 25 °C Pressure of toluene = 1.00 bar

Q: If the internal energy of a thermodynamic system is increased by 300. J while 75 J of expansion work…

A: The given data contains, Change in internal energy=300 J. Work=75 J

Q: The change in internal energy of the combustion of solid naphthalene (C10H8) was determined to be…

A:

Q: A 250 kJ of work was done on a system and as a consequence, released 350 kJ of heat. Which of the…

A: Given  Work done on the system ( W ) = 250 KJ  Heat release ( q )  = 350 KJ Correct statement = ?

Q: A heat engine performs a thermodynamic cycle. Its internal energy depending on the typle of process.

A:

Q: 3 BTU OF HEAT ENERGY WAS REMOVED FROM A SYSTEM. THE SYSTEM WAS COMPRESSED AT A CONSTANT PRESSURE OF…

A: Energy transferred can be calculated in the form of work done. This energy is either transferred to…