Part A Calculate AS if 2.70 mol of liquid water is heated from 0.00 °C to 26.7 °C under constant pressure if Cp.m= 75.3 J K. mol Express your answer with the appropriate units. HA Value Units Suhmit Peguest

Q: without doing any calculations, match the following thermodynamic properties with their appropriate…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: When 1562 J1562 J of heat energy is added to 39.0 g39.0 g of hexane, C6H14,C6H14, the temperature…

A: molar heat capacity of a substance is defined as amount of energy required to rise one unit of…

Q: Where q = heat energy (J); c = specific heat (J/g°C); AT = change in temperature °C (Tnai-Tinitiai)…

A: Given: The mass of Hg, (m)=25 g. The initial temperature, (Ti)=250C. The final temperature,…

Q: An isothermal compression is done on 3.27 mol of an ideal monoatomic gas at 88.6°C in a diathermic…

A: Formula used:-  W= 2.303nRT log V2/V1 Thus for isothermal process  Q = -W

Q: Are heat capacities (Cv) independent or dependent on temperature? Explain

A: Heat capacity is defined as the minimum amount of heat which is required to raise the temperature of…

Q: According to the opposite figure, the ideal gas volume is reached from 1 to 2 volumes during three…

A: The ideal gas law is the equation of state of a hypothetical ideal gas (in which there is no…

Q: A 6.91 mol sample of ethylene is burned in a bomb calorimeter that has heat capacity of 348.0 J C-1.…

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Q: Everything needed is included. Using information available on the data page, calculate the total…

A: Firstly, we will convert the amount of…

Q: Consider the combustion of acetylene (a.k.a. ethyne) gas: C₂H₂(g) + 5O₂(g) → 2H₂O(1) + 4CO₂(g) Part…

A: Given: Reaction: C2H2(g) +5O2(g) →2H2O (l) +4CO2(g) Note the given equation is not balanced.…

Q: Which of the following is TRUE if AEsys = -329 J? %3D O Both the system and the surroundings are…

A: Internal energy is a state function that is it depends upon the state of the system and is…

Q: The table provides molar heat capacities (??Cm) of selected metals with the units of joules per…

A: • The values provided in the question are:-  i) Molar heat capacity of lead, Cm = 26.84 J/mol•K =…

Q: calorimeter (Ccal =25.0 J/oC) which registered a  temperature increased by 15 oC  what will be the…

A: Moles of NaOH(n) = 2/40 = 0.05 mol Moles of HCl(n)= 1.82/36.5 = 0.05 mol Temperature difference = 15…

Q: „(1) + 15 0,(g) → 12 CO,(g) + 6 H,O(1) + 6542 kJ H, is burned and the heat produced from the burning…

A: First calculate heat release in 1 mole of benzene then use mole mole relationship After this…

Q: The balanced combustion reaction for C,H, is 2C,H,(1) + 15 0,(g) → 12 CO,(g) + 6 H,O(1) + 6542 kJ If…

A: The combustion reaction given is  From the above reaction we can see that 2 moles of C6H6 is…

Q: 35g of Gold (sp = 0.0308 cal/goC) at 100oC is added to 40g of Water at 22oC in a Coffee-Cup…

A: Given, Mass of gold, mgold = 35 g Initial temperature of gold, Tgold = 100 °C Specific heat of gold,…

Q: A system contains 1.5 atm N2, 4.0 atm H2, and 0.75 atm NH3 at 400. K. N₂(g) + 3H₂(g) ⇒ 2NH3(g) AG =…

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Q: A solution is made by mixing 285.0 mL285.0 mL of ethanol initially at 12.0 ∘C12.0 ∘C with 285.0…

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Q: When 0.7521 g of benzoic acid was burned in a calorimeter containing 1,000. gof water, a temperature…

A: A bomb calorimeter generally consist of water and Some other components  so when temperature is…

Q: natot Isoimodo baastdan gurvoflot ic A chemical reaction absorbs 660. Jof heat from its surroundings…

A: Given that, A chemical reaction absorbs heat from its surrounding q = 660 J External pressure…

Q: 2. The Heat of Neutralization of Hydrochloric Acid and Sodium Hydroxide 187.15 258.52g 333.29.…

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Q: A gas is allowed to expand from 3.321 L to 5.489 Lagainst an external pressure of 1.024 atm. If at…

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Q: b P= 5 atm T= 300 K P= 1 atm V= 24.62 L

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Q: бод has an Two containers of water. I contains 30g of water (A) and I contains 50g of water(B).…

A: Ans. Let final temperature is Tf after mixing Since we know that, q = mcsΔT = mcs(Tf-Ti) q is heat…

Q: What quantity of heat is required to raise the temperature of 20 L of water from 25 °C to 50 °C.?…

A: Formula used for calculating  quantity of heat required to  raise temperature of water = mc∆T

Q: Zn Water Metal cylinders B (Set 1) CaCl, Water Salt B (Set 2) (NH,),CO3 Water Salt Neutralization…

A: Zn(s)+H2O(l)→Zn(OH)2+H2(g)      ∆H=-642 kJ/mol As ΔH is negative, Hence the reaction is exothermic.…

Q: When 1177 J1177 J of heat energy is added to 39.1 g39.1 g of hexane, C6H14,C6H14, the temperature…

A: Heat supplied to a system and  change in temperature of system due to it can be correlated as…

Q: Without doing any calculations, match the following thermodynamic properties with their appropriate…

A: Thermodynamic properties are the characteristic features of a system, that specify the system's…

Q: ydrogen cyanide is a highly poisonous, volatile liquid. It can be prepared by the reaction CH4 (9)…

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Q: Constants | Perlodic Table A calorimeter is an insulated device in which a chemical reaction is…

A: Formula used  q= mwaterCwaterdT + Cx dT where dT = change in temperature  C = heat capacity and m =…

Q: Which of the following is TRUE if AEsys = 469 J? %3D O Both the system and the surroundings are…

A: The internal energy change of a system is defined as the sum of the heat transferred and the work…

Q: Calculate the final temperature of 48.2 moles of graphite that had an initial temperature of 38.0°C…

A: • The values provided in the question are:-  i) Number of moles of graphite, n = 48.2 mol  ii)…

Q: Instructions: solve as neatly as possible and show complete solution.  all values must include…

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Q: The balanced combustion reaction for CH is 2CH(1) + 150₂(g) → 12 CO₂(g) + 6H₂O(l) + 6542 kJ If 7.400…

A: Combustion reaction is a reaction in which a substance reacts with oxygen gas to produce carbon…

Q: True or False. 1. If heat flows from the surroundings, Q > 0.

A: Here we are required to state whether the given statement is true or false

Q: a. CHĄ(g) + 2H20(g) – cO2(g) + 4H2(g) b. CO2(g) + 3H2(g) – CH3OH(g) + H20(g) c. 2H,S(g) + 302(g) –…

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Q: The thermite reaction, used for welding iron, is the reaction of FegO4 with Al. 8 Al (s) + 3 Fe3O4…

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Q: The balanced combustion reaction for C,H, is 2C,H,1) + 150,(g) 12 CO, (g) + 6 H,O(1) + 6542 kJ If…

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Q: Consider the reaction (demonstrated in class) which occurs when a balloon filled with H2(g) and…

A: Solution  The reaction in question is the combustion of hydrogen gas in the presence of oxygen gas…

Q: Example 1: Calculate w and AU for the conversion of 1 mole of water at 100°C to steam at 1 atm…

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Q: A heating-cooling system cycles gases between states. Assume this system is using 1.00 moles of an…

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Q: Molar Masses A = 290.41- D = 250.53- mole E = 75.44e mole G = 117.05 X = 10.93le Z = 50.01 mole mole…

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Q: n the thermochemical equation 2502la) + Ozlal – 2503lal. AHnen -198 kJimol, how much heat is evolved…

A: Molar mass SO2 is 64.066

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.