Calculate the change in internal energy of a gas that absorbs 155 J of heat and then expands from an initial volume of 2.50 L to 3.75 L. A constant externalpressure of 0.987 atm is exerted on the gas.

Q: A 2.855 g2.855 g sample of a new organic material is combusted in a bomb calorimeter. The…

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Q: A 2.821 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

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Q: A 498.00 sample of an unknown metal at 92.15°C is placed in a calorimeter containing 185.00 mL of…

A: At the thermal equilibrium, the heat lost by the metal is equal to the gained by the water.…

Q: A sample of gas in a cylinder with a free-floating piston for a lid is heated. The gas gains 107 J…

A: given heat (q) = 107 J work done (w) = 23 J

Q: A chemical reaction is run in which 698 Joules of heat are absorbed and the internal energy changes…

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Q: The air within a piston equipped with a cylinder absorbs 565 J of heat and expands from an initial…

A: Internal energy is the total energy present within a given system, which includes the kinetic energy…

Q: A 30.14-g stainless steel ball bearing at 117.82°C is placed in a constant-pressure calorimeter…

A: In this process, the heat absorbed by the water is equal to heat release by the stainless steel…

Q: Enter your answer in the provided box. A 34.51-g stainless steel ball bearing at l15.81°C is placed…

A: Answer:- This question is answered by using the simple concept of calorimetry which states that heat…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Given: Mass of Cs2SO4 = 22.75 gMass of water = 117.50 gInitial temperature = 25.42 °CFinal…

Q: A 30.0 g sample of water at 280. K is mixed with 30.0 g of iron at 330 K. The final temperature of…

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Q: A chemical reaction in a bomb calorimeter evolves 5.17 kJ of heat. If the heat capacity of the…

A: Given, the heat evolved, q = 5.17 kJ Heat capacity, c = 1.08 kJ/°C Temperature, ΔT = ? The formula…

Q: Suppose we have a closed, un-isolated system. When 483 J of heat was introduced to the system, it…

A: Internal energy is a state function. The symbol used for internal energy is U. The unit used for the…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: The enthalpy of dissolution can be calculated from the following formula. ∆Hdissolution=Qreactionno…

Q: 300J of heat is added to the  system and 180 J of work is done by the system through expansion. How…

A: Given that: Heat added to the system (q) = 300 J Work done by the system (w) = -180 J Internal…

Q: It takes 585 J of energy to raise the temperature of 125.6 g of mercury from 20.0°C to 53.5°C.…

A: Given, Heat energy, q = 585 J Mass, m = 125.6g Change in temperature, ∆T = 53.5- 20 = 33.5°C

Q: A 31.55 g iron rod, initially at 22.7 °C, is submerged into an unknown mass of water at 63.2 °C, in…

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Q: Calculate the change in internal energy for a system that is giving off 45.0 kJ of heat and is…

A: According to the second law of thermodynamics, change in internal energy is related to heat and work…

Q: A piece of metal of mass 18.0g at 100 degrees Celsius is placed in a calorimeter containing 50.2…

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Q: 12. A 44.0 g sample of unknown metal at 99.0 °C was placed in a constant-pressure calorimeter, with…

A: The formula for specific heat can be written below in which q represents the heat energy in Joules,…

Q: Ethanol weighing 3.56g is burned in a constant-volume bomb calorimeter. Consequently, the…

A: Heat capacity of Bomb calorimeter and water = 8.224 KJ/◦C

Q: Calculate the change in the internal energy for a certain process if 800 J of work is done on the…

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Q: In the laboratory a student finds that it takes 200 Joules to increase the temperature of 15.0 grams…

A: • The values provided in the question are:-    i) Mass of magnesium, m = 15.0 g  ii) Initial…

Q: A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter…

A: Equation that corresponds to the given enthalpy change is as follows.…

Q: A lead pellet having a mass of 26.47 g at 89.98 °C was placed in a constant-pressure calorimeter of…

A: Given data: The mass of the lead pellet=26.47 g. The temperature of the lead pellet=89.93°C. The…

Q: In a constant-pressure calorimetry experiment, a reaction gives off 21.8 kJ of heat. The calorimeter…

A: The given data contains, heat = 21.8 kJ. mass = 150 g. Initial temperature= 23.40C.

Q: A 50.0 mL sample of 0.5 M AgNO3(aq) is mixed with a 50.0 mL sample of 0.5 M NaI(aq) in a…

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Q: Determine the internal energy change if 718 J of heat are transferred to the system and 437 J of…

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Q: What is the change in the internal energy of the system if the surroundings releases 300J of heat…

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Q: 12. The work done to compress a gas is 50 J. As a result, 20 J of heat is given off to the…

A: Work done to gas = +50 J  Heat lost = -20 J

Q: resulting

A: ∆U = q + w  Where : ∆U = change internal energy = +166kJ  Heat(q) = +762 kJ ( positive value because…

Q: A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter…

A: 6.55 g of aniline was combusted in a bomb calorimeter with heat capacity of 14.25 kJ/oC. It is…

Q: 8. Titanium reacts with iodine to form titanium (III) iodide, emitting heat. 2Ti(s) + 31,(g)→…

A: Atomic mass of Ti = 47.87 g/mol Atomic mass of I2 = 253.8 g/mol Given thermochemical equation 2Ti(s)…

Q: A system has 400J of heat added to it and then subsequently use 160J to do work. What is the change…

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Q: A 3.623 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Given, The weight of sample is 3.623 g. The given temperature values are 23.53 ˚C and 30.40 ˚C. The…

Q: Find the change in internal energy when a gas absorbs 28 kJ of heat and has 13 kJ of work done on…

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Q: A 3.971 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: The total heat can be calculated as,

Q: Calculate the work done by a gas when its volume expands from 3.0L to 8.0L under atm. How much heat…

A: Work done (w) :  w =-Pext.Vf-Viw = -1×8.0-3.0w = - 5 L.atmw = -5 ×101.325 Jw = - 506.625 J   Given :…

Q: For a process, 153 J of heat was released by the system and 267 J of work was done on the system.…

A: Thermodynamics is branch of chemistry in which we deal with heat absorbed and heat released in to…

Q: olid lithium chloride dissolves in water according to the equation below. LiCl (s) ⟶ Li+ (aq) + Cl−…

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Q: An automobile engine provides 551 J of work to push the pistons and generates 2250 J of heat that…

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

Q: Calculate ΔE of a gas for a process in which the gas evolves 24 J of heat and has 9 J of work done…

A: Applying 1st law of thermodynamics  ΔE = q + w  where ΔE is change in internal energy , q = heat…

Q: An 80.0 g sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was…

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

Q: If the molar mass of water is 18.02 g/mol and the specific heat of water is 4.184 J/g.◦C, calculate…

A: The molar mass of water = 18.02 g/mol. The specific heat of water = 4.184 J/g.◦C Molar heat capacity…

Q: A system receives 425 J of heat and delivers 425 J of work toits surroundings. What is the change in…

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Q: Calculate the final temperature of the water. Given a 32.4-g stainless steel ball bearing at…

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Q: A 1.917 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

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Q: A system initially at 1.50L changes its volume under an external pressure of 0.988atm while…

A: Given data:

Q: A calorimeter contained 67.0 g of water at 15.93°C. A 110.-g sample of iron at 66.42°C was placed in…

A:

Q: A 44.0 g sample of unknown metal at 99.0°C was placed in a constant-pressure calorimeter, with a…

A: Given : Mass of water = 80.0 g Mass of metal = 44.0 g Initial temperature of water = 24.0 oC Final…

Q: The air within a piston equipped with a cylinder absorbs 545 J of heat and expands from an initial…

A: The work done against a constant external pressure is given by  W = -Pext∆V  Pext = constant…