08 kJ es it mean when there is a negative sign for

Q: 5. The chemical reaction presented below is not balanced. Balance it and calculate AH° and ASurr for…

A: CO(g) + H2(g) ----> CH3OH (l)

Q: When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of FeCl2(s) and 8.60 kJ of heat is…

A: Given, Produced mass of FeCl2 is 3.22 g Produced heat is 8.60 kJ Molar mass of FeCl2 is 126.751…

Q: consider the following: 3b=2c+d is -125kj (1/2)a=b is 150 kj E+A=D is 350  calculate heat for…

A: In this case heat can be calculated using Hess law

Q: When 2.26 g of a salt dissolves in 121 mL of water (density = 1.00 g/mL) in a coffee-cup…

A: heat  capacity is defined as amount of energy needed to raise unit temperature of an object.

Q: Given the following ΔG⊖reactionΔGreaction⊖ at 25 C∘C∘: #1: SO2(g)3CO(g)⇀COS(g) +2CO2(g)…

A: Given the following ΔG°reaction at 25 °C:    ΔG°reaction is to be determined at 25°C for:…

Q: The heat required to increase the temperature of 50.0 g H₂O(l) from 25.0 °C to 45.0 °C is (Data for…

A: Heat is defined as the is the form of energy that is transferred between systems or with different…

Q: Calculate the work done (J) by 10 mole of an O2(g) when it expands reversibly at a constant pressure…

A: For an ideal gasPV=nRT WhereP= pressure V= volume n= number of moles T=temp

Q: Determine the enthalpy for the reaction shown below. CS2(l)  +  3O2(g)  -->  CO2(g)  +  2SO2(g)…

A:

Q: Explain how using Hess's law is like traveling two different routes to end up at the same…

A: Hess's Law of constant heat summation states and explains that the total enthalpy (energy) change is…

Q: Determine

A: We will calculate ∆H rxn by doing operation in giving equation

Q: Using the data below, calculate the enthalpy for the formation of rust, iron(II) oxide. 2Fe(s) +…

A:

Q: ΔH for the reaction IF5 (g) → IF3 (g) + F2 (g) is __________ kJ, given the data below. IF (g) + F2…

A: Given reactions, IF (g) + F2 (g) → IF3 (g)         ; ΔH = -390 kJ  ----1  IF (g) + 2F2 (g)→ IF5 (g)…

Q: 5.38 A 0.1375-g sample of solid magnesium is burned ina constant-volume bomb calorimeter that has a…

A: The given data contains, mass = 0.1375 g. Heat capacity = 3024 J/°C Temperature=1.126°C

Q: Calculate ΔHrxn for the following reaction: CaO(s)+CO2(g)→CaCO3(s) Use the following reactions and…

A: "Hess law" helps in the evaluation of enthalpy change (Delta H)  for any specific reaction. When the…

Q: The value ΔH0 of for the reaction 2Ba(s) + O2(g)→ 2BaO(s)is -1107 kJ. Determine the heat released…

A: The enthalpy of a reaction is the heat that is released or absorbed in a chemical reaction that…

Q: Calculate ΔH for the process Hg2 Cl2(s) ⟶ 2Hg(l) + Cl2(g)from the following information:Hg(l) +…

A: Given: First need to reverse the equations, and then do the addition as the question is requiring…

Q: Calculate the energy required to heat 252.0 mg of cyclohexane from 16.1 °C to 31.9 °C. Assume the…

A:

Q: Find q (heat) when 1.22 mol of water is heated from 25.0°C to 100.°C. (The specific heat capacity…

A: Consider the given information is as follows; Moles of water = 1.22 mol Initial temperature T1 =…

Q: V. The thermochemical equation for the incomplete combustion of carbon into carbon monoxide is…

A: Given:  Reaction (1):  C(s) + O2(g) ---> CO2(g)                      ∆H1 = -393.5 kJ  Reaction…

Q: Estimate AH for the reaction. нн H. H-N-N-H+ Cl-Cl 2H-Ń-CI Express your answer using one significant…

A: bond energy of N-H = 391 kJ/mol bond energy of N-Cl = 200 kJ/mol bond energy of N-N = 163 kJ/mol…

Q: Given the following data: Br2(l) + 5F2(g) → 2BrF5(l)  ΔH°=-918.0 kJ BrF3(l) + Br2(l) → 3BrF(g)…

A: Given information, Br2 (l) + 5F2 (g) → 2BrF5 (l) ΔH°=-918.0 kJ BrF3 (l) + Br2 (l) → 3BrF (g)…

Q: Calculate ΔGrxn at 7.2 °C for a reaction that has ΔHrxn= 29.4 kJ and ΔSrxn= 78.08 J/K

A: Given :-  Temperature = 7.2°C  ΔHrxn= 29.4 kJ  ΔSrxn= 78.08 J/K  To calculate :-  ΔGrxn

Q: 10 O when grams, and in a calo the tem pe heat capac what is th

A: Given data - 1] unknown metal 63.40 2]Temperature =  87.80 Celcius 3] The mass of water in…

Q: (a) CH,N, hy (b) heat H,SO, (c) then H,O

A:

Q: FInd the question in attachement

A: Given: Heat transferred(Q) = 46.71 kJ = 46710 J Mass of slab(m)= 1.429 kg = 1429 g  intital…

Q: For the reaction, A + B → C, AH = +30 kJ; AS = +50 J/K. Therefore the reaction is:

A: For the case when both standard enthalpy and entropy change is positive - In order to be a…

Q: The chemical reaction presented below is not balanced. Balance it and calculate AH° and ASSurr for…

A: The correct answer is given below

Q: Given the following data: Br2(l) + 5F2(g) → 2BrF5(l)  ΔH°=-918.0 kJ BrF3(l) + Br2(l) → 3BrF(g)…

A: According to Hess's law The energy change in an overall chemical reaction is the summation of energy…

Q: Determine the heat of the reaction for the process: FeO(s) + Fe,O3(s) --> Fe;O4(s) given the…

A:

Q: When 8.36 g of a salt dissolves in 142 mL of water (density = 1.00 g/mL) in a coffee-cup…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only as per…

Q: The combustion of 2.474 g of propanol (C3H7OH) increases the temperature of a bomb calorimeter…

A:

Q: The following thermochemical equation is for the reaction of iron(III) oxide(s) with hydrogen(g) to…

A: In order to find the amount of energy liberated or absorbed we first write down the given data:…

Q: A 201-lb man decides to add to his exercise routine by walkingup three flights of stairs (45 ft) 20…

A: Calculate the weight of man in kg.

Q: Determine the enthalpy for the reaction shown below. CS2(l)  +  3O2(g)  -->  CO2(g)  +  2SO2(g)…

A: In this question, we have to find out the correct answer of given problem by the help of…

Q: Determine the enthalpy for the reaction shown below. CS2(l)  +  3O2(g)  -->  CO2(g)  +  2SO2(g)…

A: Heat of reaction is defined as difference of energy of product  and energy of Reactant. If heat of…

Q: Which of the following statement(s) is (or are) true? I. Heat (g) is a state function because AH is…

A: Heat is not a state function because it is not an intrinsic property of a system Heat is not a state…

Q: Given that H, (g) + F, (g) –→ 2 HF(g) AHixn -546.6 kJ 2 H, (g) + O,(g) 2 H, O(1) AHixn -571.6 kJ…

A:

Q: A 0.75 g sample of KCl is added to 50.0 g of H20 in a Styrofoam cup and stirred until it dissolves.…

A: Given that: Mass of KCl = 0.75 g Mass of water = 50.0 g Initial temperature is 26.0oC Heat of the…

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

A: The heat of the process is given by  Q = mCΔT  where Q = heat required or energy required  m = mass…

Q: Calculate the total energy (kJ) required to heat a 17.5 g sample of benzene (C6H6) from 0.00 °C to…

A:

Q: COPPER Mass of EMPTY Cup 4.0g Mass Of Cupt whater 64.09 Mass of water 64.0g 4.0a Mass of COPPER…

A: Given : Mass of water = 60.0 g Mass of metal i.e copper = 17.92 g Initial temperature of water =…

Q: (e) Calculate the enthalpy change associated with this reaction. 2C(s) + H2(g) ---> C2H2(g) AH° =…

A:

Q: 5. The chemical reaction presented below is not balanced. Balance it and calculate and for this…

A: Balanced chemical equations are those in which the number of atoms of each kind on both sides of the…

Q: A mixture of helium and hydrogen gas is co held constant at 76.0 atm. Calculate the w- or negative)…

A:

Q: Calculate the ΔGo for a reaction, given the ΔHo for the reaction = -5052.8 kJ  and the ΔSo for the…

A: Recall the following expression to calculate∆G° as follows                    ∆G°=∆H°-T∆S°Given…

Q: 127 J of work to the s. What is the chang rgy of the system?

A: According to the question, a system releases 235 J of heat while performing 127 J of work to the…