The internal energy, E, of a system is the sum of the kinetic and potential energy of all of components of the system.     What is ΔE (in kJ) for a gaseous system that increases the kinetic energy of it particles using 9,904. J of heat from surroundings and changes the potential energy by doing 5.38 kcal of work against the atmosphere at the same time?

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 253. kJ during a…

A: The sign convention for heat flow are as follows : When the heat flows into the system, a positive…

Q: A mixture of gases undergoes a chemical reaction inside of a container with a movable piston. The…

A: Here the heat is releases means it will be having a negative sign as q= -243KJ And here work is done…

Q: A 40.0 g sample of an unknown metal at 99.0 °C was placed in a constant-pressure calorimeter…

A: According to thermodynamics, the heat released by the hot metal equals the heat absorbed by the…

Q: 50.0 mL of 1.50 M CaCl2 solution and 80.0 mL of 2.00 M NaOH solution both initially at 22.3℃ are…

A: MMoles of CaCl2 =  M × V        = 1.50 × 50 = 75 mmol Mmol of NaOH = M × V          = 2.00 × 80 =…

Q: How much heat is required to raise the temperature of 235.42 g of water from 22.5 °C to 96.2 °C?…

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Q: During a certain chemical reaction 270 J of heat is absorbed by the system and 500 J of work is done…

A: △U = q-w  ∆U = change in internal energy q = heat absorbed by the system w = work is done

Q: A dilute solution of hydrochloric acid with a mass of 606.87 g and containing 0.31625 mol of HCl was…

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Q: A chemical reaction requires 452.3 kJ of heat and performs 87.0 kJ of work on the surroundings. What…

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Q: A system does 521 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

A: The objective of the question is to calculate the change in internal energy (ΔE) of a system that…

Q: When 50.0 g of an aqueous solution of reagent 1 at 24.1oC is added to 100.0 g of of an aqueous…

A: Given : Mass of reagent 1 solution = 50.0 g Mass of reagent 2 solution = 100.0 g Initial temperature…

Q: What is the internal energy change on a system when it gives of 160 kJ of heat to the surroundings…

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Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 126. kJ during a…

A: Solution                                          Given that  Enthalpy is decreased = 126 kj Work…

Q: Consider the following reaction: 2C6H6() + 15 O2(g)- 12 CO2(g) + 6 H20() AH = -5.869 x 103 kJ An…

A: Each reaction takes place account to their stoichiometric radio and account to those things the heat…

Q: The molar enthalpy of solution is the amount of heat absorbed or released when a mole of that…

A: Answer: This question is based on energy conservation where heat released during dissolution of a…

Q: Air in an inflated balloon (system) is cooled and loses 203. J of heat. The surroundings also…

A: Given that, A system looses 203.0 J of heat. The work is done by the surroundings is 79.8 J. Which…

Q: up the solution to a basic quantitative problem The specific heat capacity of a pure substance can…

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Q: A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the…

A: Given : Moles of compound reacted = 2.00 mol Mass of solution = 161 g Initial temperature of…

Q: If, in defining the specific heat, temperature is represented in ∘F instead of ∘C then the numerical…

A: Both Fahrenheit (oF ) and degree Celsius ( oC) is unit of temperature.

Q: None

A: Enthalpy Change Calculation:Enthalpy change (ΔH) is the sum of the energy change (ΔE) and the work…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 206. kJ during a…

A: The work done on the gas mixture is =-145. kJ The change in the energy of the gas mixture is = 206.…

Q: In a constant-pressure calorimeter, 50.0mL of 0.340MBa(OH)2 was added to 50.0mL of 0.680MHCI. The…

A: The objective of this question is to calculate the heat absorbed by the solution in a…

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 396. kJ during a…

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Q: A coffee cup calorimeter contains 156.56 g of water at 22.50 °C. A 66.065 g piece of iron is heated…

A: we have to calculate  qiron qwater  ccalorimeter  Tfinal when heat lost by iron is equal to heat…

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 301. kJ during a…

A: Work done on mixture = - 104 kJ ∆U = +301 kJ

Q: An experiment is performed in the chemical lab, 405 J of heat is absorbed by a system and 285 J of…

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