The value of ΔE for a system that performs 213 kJ of work on its surroundings and loses 79 kJ of heat is ___ kJ. a. -134 b. +134 c. +292 d. -292

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: Oxygen gas at 34.5 °C expands from 34.5 L and 45.7 L against a constant pressure of 750 mmHg. What…

A: T = 34.5oC = 273+34.5 = 307.5K number of moles of oxygen (n) = PV/RT = 0.98X34.5/0.082X307.5 =…

Q: A 15.08 g piece of Mg is placed in a container containing 1.0 L of 3.0 M HCI (aqueous). Calculate…

A:

Q: Calculate the work ( in kJ ) done during a reaction in which the volume expands from 12.0 L to 14.5…

A: Work done :-       Energy that is transmitted from one system to another in such a way that…

Q: A certain closed system absorbs 150 J of heat and does 210 J of work. Which of the following about…

A: Given that : Amount of heat energy absorbed = 150 J Work done by the system = 210 J We have to…

Q: Imagine some helium in a cylinder with an initial volume of 1 liter and an initial pressure of 1…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 4. Which equation represents the second law of thermodynamics? A. A Suniv> 0 B. A S sys > 0 C. (A…

A: Entropy is the measurements of randomness.Greater the random greater will be the entropy.

Q: 5.19 Consider these changes. At constant pressure, in which of the reactions is work done by the…

A: The work performed by the compression as well as expansion of a fluid is known as pressure–volume…

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: A heat engine produces 2000 J of work while operating at temperatures ranging from 210 to 35 degrees…

A:

Q: 7. Consider reaction H2(g) + Cl2(g) + 2HCI (g) AH = -184.6 kJ/mol If 3 moles of H2 react with 3…

A:

Q: Given the hypothetical thermochemical equation: A + B —> C + D ΔH = - 430 kJ A. The reaction is…

A: A multiple choice question based on thermochemical equation, which is to be accomplished.

Q: If the same amount of energy in the form of heat is added to 19.5 g samples of each of the metals…

A:

Q: N2(8) + 3H2(g) – 2NH3(g) AHn = -92.6 kJ/mol rxn If 2.0 moles of N, react with 6.0 moles of H, to…

A: The reaction given is  N2(g)+3H2(g)-------------> 2NH3(g) Ammonia can also be synthesized by the…

Q: The specific heat capacity of silver is 0.24 J/°C g. a. Calculate the energy required to raise the…

A: Given: Specific heat capacity of silver = 0.24 J/°C g

Q: A sample of aluminum with a mass of 53.4 g is initially at 156 ∘∘ What is the temperature of the…

A: Specific heat (C) :-  The amount of heat required to raise the temperature of 1 gram of a substance…

Q: If pressure is expressed in atmospheres and volume is expressed in liters, PAV has units of L atm…

A:

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

A:

Q: What is the change in the energy of surroundings when the system absorbs 17.5 kJ of energy and…

A: It is given that system absorbs 17.5 kJ of energy and the work done is 5×103 J. It is known that 1 J…

Q: A system absorbs 21.6 kJ of heat while performing 6.9 kJ of work on the surroundings. If the initial…

A:

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: Calculate the work, in joules, done by a gas as it expands at constant temperature from a volume of…

A: During the expansion of a gas at constant temperature the work done by the system is given by: w =…

Q: When a 10.0 g metal sample (0.85 J/goC) at 110.oC is placed in an insulated cup of water at 25oC,…

A: According to Law if calorimetry Heat absorbed by a system = heat released by another system Here the…

Q: Identify the three statements from the list below that BEST describe the first law of…

A: Solution :      Thermodynamics is a branch of chemistry that shows the effects of heat, energy and…

Q: What is the work (in J) done on the system to compress an inert gas from 24.0 L to 12.5 Lagainst a…

A:

Q: 6530 J of heat were added to five moles of a monatomic ideal gas in a process where the temperature…

A:

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 12.0 atm. Calculate…

A: For single step expansion : w = -Pext.∆V = - 1.00 x (12-1) = -11 L.atm = -11 x 101.325 J = -1114.575…

Q: N2(g)+3H2(g)→2NH3(g) AH°rxn=-92.6 kJ/mol f 2.0 moles of N2 react with 6.0 moles of H2 to form NH3,…

A: Work is calculated by  W= nRT And for ∆U we will use first law of thermodynamics.

Q: reactions would work be done on the system (at constant temperature and pressure)?   Hg (l)   ->…

A: From the iupac sign conve ntion, Work done on the system is positive.  At constant temperature and…

Q: a) Consider the reaction N2(8) + 3H2(g) 2NH3(g) AHn = -92.6 kJ If 2 moles of N2 reacts with 6 moles…

A:

Q: During a breath, the average human lung expands by about .50 L. If this expansion occurs against an…

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

Q: A 1.00 g sample of Ne (g) at 1.00 atm pressure and 27 oC is allowed to expand into an evacuated…

A: Solution- on the all above process work done will be zero.  Because the expansion of an ideal gas in…

Q: T22    Repeat the previous question but give the answer in Joules. If 15.2 L of gas expands to 45.8…

A: When the work is done by the system then it is negative .  W= pdv

Q: A system absorbs 423 J of heat while doing 241 J of work. What is the value of AU? Lütfen birini…

A: ∆U = q-w  q = heat = 423 J w = work done = 241 J

Q: Oxygen gas at 34.5 "C expands from 34.5 L to 45.7 Lagainst a constant pressure of 750 mmHg. What is…

A: The values given are : T = 34.5o C Vinitial = 34.5 L Vfinal = 45.7 L P = 750 mmHg 1 L atm = 101.325…

Q: 1 mole of an ideal gas is at 6 atm pressure, occupies 3 L and has an internal energy of 2735.1 J.…

A: Here the system undergoes two different paths.  Path-1 is constant volume process Path-2 is constant…

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 24.0 atm. Calculate…

A: Given that : The internal pressure of the gas = 24.0 atm The initial volume of the container = 1.00…

Q: When gasoline is burned at constant pressure, some heat is released and some work is done. Which of…

A: The heat exchange, q, at constant pressure, P, is the enthalpy change, ΔH, for the system so ΔH =q.

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

A: Interpretation - The sign of work in the given process is positive or negative is to be explained.

Q: a) Consider the reaction N2(8) + 3H2(g); → 2NH3(g) AHn = -92.6 kJ If 2 moles of N, reacts with 6…

A: This is the case of irreversible thermodynamics under constant pressure. According to irreversible…

Q: at 25°C the molar volume of water V is given by: V = 18.066 – 7.15 X 104 P+ 4.6 X 10* P?, here V is…

A: Temperature given is 25 C 25 + 273 = 298.15 k V = 18.066 – 7.15 X 10-4 P + 4.6 X 10-8 P2 .dV/dT P =…

Q: Calculate the work (kJ) done during a reaction in which the internal volume expands from 28 L to 59…

A: Work done by the system is      W = - Pext ∆V         = - Pext ( Vfinal - Vinitial)

Q: A system gains 20.4 J of internal energy while doing 30.0 J of work. Does heat enter or escape from…

A: From first Law of Thermodynamics , the total change in internal energy of the system can be…

Q: Consider an ideal gas enclosed in a 1.001.00 L container at an internal pressure of 18.018.0 atm.…

A: A. Work = -Pexternal ×volume change -1.001atm×18.018.0-1.001L=-17.034atm-L1atm…

Q: How much work in L*atm is done by 1.44 moles of a gas that has an initial volume of 22.5 liters and…

A: Initial Volume of gas = 22.5 L Calculation of final volume of gas: where P is the final pressure, V…

Q: estion 30 of 41 <. Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of…

A:

Q: A certain heat engine operates between 50 ° C and 130 ° C. (a) Calculate the maximum work that can…

A: Given data,Temperature of hot source(T1)=130oC=273+130=403KTemperature of cold…

Q: 00 IN L OUniversity Science Book: presented by Macmillan Learning Stry 4th Edition McQuarrie Rock…

A: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 18.0 atm. Calculate…