19 (i) (ii) (iii)

Q: by Leamin When a 6.00 g sample of RbBr is dissolved in water in a calorimeter that has a total heat…

A:

Q: How much work, w, must be done on a system to decrease its volume from 10.0 L to 3.OL by exerting a…

A: Given, Initial volume = 10 L Final volume = 3 L Pressure = 6 atm

Q: 4. Which among the following refers to the value of internal energy. A 1025 J of heat energy is…

A: First law of thermodynamic says  Q = ΔE + W

Q: 5.2 b Calculate the magnitude of q for a system that does 7.05 × 105 kJ of work on its surroundings…

A: From given data W = -7.05×105 kJ ∆U = -9.55×103 kJ W is negative because work is done by system on…

Q: A calorimeter contains 18.0 mL of water at 14.0 °C. When 1.30 g of X (a substance with a molar mass…

A: Volume of water = 18 mLDensity Of water =1.00 g/mLMass of water = Volume of water * Density of…

Q: Question is attached

A: when NaOH is dissolved in the water it dissociates completely in ions   A solute dissolves in…

Q: 4. A system receives 75 J of electrical work, delivers 274 J of expansion work, and absorbs 168 J of…

A: Givens :   Work done by the system ,                         W   = 274 joules Heat absorbed by the…

Q: A piston performs work of 217 L atm on the surroundings, while the cylinder in which it p,aces…

A: Record the given data,   Work done w = 217 L atm   Piston expands from 8L to 24 L.

Q: 5.115 A quantity of 50.0 mL of 0.200 M Ba(OH)2 is mixedwith 50.0 mL of 0.400 M HNO3 in a…

A: The balanced chemical equation is given as, BaOH2(aq)+2HNO3aq→BaNO32aq+2H2Ol The required amount of…

Q: How much work, w, must be done on a system to decrease its volume from 20.0 L to 13.0 L by exerting…

A: Since you have posted multiple questions, we are entitled to answer the first only. Given: Constant…

Q: When a student mixes 50 mL of 1.0 M HCl and 50 mL of 1.0 M NaOH in a coffee-cup calorimeter, the…

A: Given: Total volume of solution= 100 mL Initial temperature= 21°C Final temperature= 27.5°C

Q: A scientist measures the standard enthalpy change for the following reaction to be 2885.4 kJ:…

A: 6CO2 (g)  + 6 H2O (l)  ---> C6H12O6 (s) + 6 O2 (g)  ∆Hrxn  = 2885.4 KJ/mol ∆H°f H2O = ?

Q: The diagram shows four states of a system, each with differentinternal energy, E. (a) Which of the…

A: a. In accordance to the given figure, the internal energy value increases from State A to State B.…

Q: When 0.0700 moles of metal "X" is allowed to completely react with 200 mL of aqueous HCI, the…

A: Given data,Moles of Metal=0.070molesVolume of HCl=200mL∆T=42.9-25=17.9oCHeat capacity of…

Q: Indicate which of the following is independent of the pathby which a change occurs: (a) the change…

A: (a) Potential Energy can be defined as the energy possessed by the object by virtue of its position,…

Q: Given the thermochemical equations X, +3 Y, → 2XY AH = -330 kJ X, +2Z, → 2XZ, AH = -120 kJ 2Y, +Z, →…

A: Given thermochemical reactions are : X2+3Y2→2XY3                               ∆H1=-330 kJ…

Q: When a system gives off heat and does not work on its surroundings, delta E is always(

A: According to the First law of thermodynamics,  ∆E = q + W Here, q = Heat released or absorbed.…

Q: Calculate the overall change in internal energy, AU, (in joules) for a system that absorbs 500 J of…

A: GIVEN: Heat absorbed = 500 J = q Work done = 300 J = w Change in internal energy (∆U)= ?

Q: When 10.000 gm of oxalic acid, H2C2O4, are burned in a bomb calorimeter that has a total heat…

A: The amount of heat released in the combustion of oxalic acid is absorbed by the bomb calorimeter to…

Q: The energy lost or gained by a chemical reaction is measured by the reaction's enthalpy change. The…

A:

Q: 2. Calculate the pV work done (in Joules) when a gas expands from 3 L to 8 L against a constant…

A: Given : Initial volume of gas = 3 L  Final volume of gas = 8 L And constant external pressure = 5…

Q: A scientist measures the standard enthalpy change for the following reaction to be 11.0 kJ…

A: Given: Standard reaction enthalpy= 11.0 kJ

Q: Which of the following is a statement of the first law of thermodynamics? O Ek = 1/2 mv2 O A…

A: Which of the given statement follows the first law of thermodynamics ?

Q: A gas is compressed in a piston with 8.80E1 J of work. As a result, 4.2E1 J of heat is given off to…

A: Solving only first question in accordance with the guidelines. We will answer this question using…

Q: During an experiment, a student adds 1.23 g Ca0 to 200.0 mL of 0.500 M HCI. The student observes a…

A: Generally the heat released in the reaction is absorbed by the solution and raises the temperature…

Q: 4. When 1.50 g of Ba(s) is added to 100.00 g of water in a container open to the atmosphere, the…

A: Given: Mass of Ba = 1.5 gMass of H2O = 100 gSpecific heat of solution = 4.18 J/g.°CInitial…

Q: How much work, w, must be done on a system to decrease its volume from 12.0 L to 3.0 L by exerting a…

A: w = P . ∆V P = 3.0 atm and ∆V = 12.0 - 3.0 = 9.0 L w = 3.0 x 9.0     = 27.00 L. atm

Q: How much work, w, must be done on a system to decrease its volume from 11.0 L to 3.0L by exerting a…

A:

Q: How much work, w, must be done on a system to decrease its volume from 12.0 L to 3.0L by exerting a…

A: If w id the work done the systemwork(w)=-Pe×∆vw= -pe×(vf-vi)If a gas compacts vf<vi and work is…

Q: 2. Write the balanced chemical equation for the combustion of benzene, C6H60, to give carbon dioxide…

A:

Q: The value of the enthalpy of the reaction for a reaction is equal to 200 KJ / mol at 25 °C, then the…

A: Enthalpy of the reaction at 25oC = 200 KJ/ mol…

Q: 1. Given that AH°,( BaSOle) = -1,473 KJ/mol, using the given table, what is standard enthalpy change…

A: Given reaction is :  Ba2+ (aq) + SO42- (aq)---------> BaSO4 (s)  Enthalpy of formation of BaSO4…

Q: Calculate AH (in kJ/mol NaOH) for the solution process NaOH(s)Na+ (aq) + OH (aq) Assume that the…

A: As the temperature of the solution rises therefore the dissolution process of NaOH is exothermic.…

Q: A scientist measures the standard enthalpy change for the following reaction to be -351.2 kJ :…

A: The enthalpy of the formation of the substance is ; ∆H = enthalpy change for the reaction = 351.2 KJ…

Q: A scientist measures the standard enthalpy change for the following reaction to be 161.3 k):…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 242.0 mg sample…

A:

Q: A scientist measures the standard enthalpy change for the following reaction to be 11.0 kJ…

A: Standard Enthalpy change of a reaction is the sum of the standard enthalpies of products minus the…

Q: The value of AH° for the reaction below is 128.1 kJ CH ,OH CO2es + 2H, (1) 2(g) 2(g) How may kJ of…

A: Enthalpy is thermodynamic property which is extensive in nature

Q: Balance the following chemical equation, name the reactants and products, and calculate the enthalpy…

A: The equation is given as,

Q: When 1 mol of a fuel is burned at constant pressure, it produces 3455 kJ of heat and does 12 kJ of…

A: Delta E = q + w  where Delta E = change in internal energy  q = heat , w = workdone

Q: 17D.1. (a) What is the specific heat of liquid water? (b) What is the molar heat capacity of liquid…

A: Specific heat is the amount of heat per unit mass required to raise the temperature by one degree…

Q: Kapia walking through a distance of 2.2 km for 30 minutes per day requires 41 J while swimming for…

A: Given that standard enthalpy of combustion glucose is -2806 kJ/mol Molar mass of glucose is 180…

Q: 11. The value of AE for a system that performs 213 kJ of work on its surroundings and loses 79 kJ of…

A: According to first law of thermodynamics, energy can neither be created nor be destroyed. It can…

Q: A heat engine operates between a hot source at 130.°C and a cold sink at 10.°C. How much work can be…

A: For carnot cycle, efficient is related to temperatures of hot source and cold sink

Q: 7. Calculate the standard enthalpy change at 25°C for the reaction CH, (g) + 2 H₂S (g) →→ CS₂ (1) +…

A: The standard enthalpy of reaction is the change in enthalpy of a reaction under standard conditions.…

Q: How much work, w, must be done on a system to decrease its volume from 18.0 L to 11.0 L by exerting…

A:

Q: In an experiment to measure the heat released by the combustion of a sample of fuel, the compound…

A:

Q: A system does 501 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

A: