If the ▲G0 for a reaction is -4.5 kcal/mol at 298 K, what is the Keq for this reaction? What is the change in entropy of this reaction if ▲H0 = -3.2 kcal/mol?

Q: A coffee-cup calorimeter was calibrated using 10.0 mL of 0.100 M HCl and 2.00 mL of 0.300 M NaOH…

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Q: Suppose you burn a 2.3 g sample of potato chips. You use the heat given off from that process to…

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Q: Calculate the maximum number of Calories (kilocalories) in a 2000‑ and a 2500‑Cal diet that should…

A: The daily value of fat in 2000-cal diet and 2500-cal diet is 65 g and 80 g, respectively. 1 g of fat…

Q: If C + O2 CO2 + 90kcal H2 + 02 H20+ 60kcal CH4 + 202 - CO2 +2H2O+ 210 kcal Then the possible heat of…

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Q: In the same reaction: CH4 + 2 O2 → CO2 + 2 H2O The experimental ?H is -213 kcal/mol. How many heat…

A: 2 mol of O2 burn heat released = -213kcal/mol 2.30mol of 2 mol of O2 burn heat released = -213 ×…

Q: When 4.75 g of sodium hydroxide (NaOH) was dissolved in 50.00 g of water a value of 11.00oC was…

A: Given information,Mass of sodium hydroxide is 4.75 g, mass of water is 50.00 g and the temperature…

Q: When 1.00 g1.00 g of ethanol (C2H5OHC2H5OH)is burned in the air, −29.7 kJ−29.7 kJ of heat energy is…

A: Combustion :- The burning of a compound in excess of  air or oxygen is called combustion . It is an…

Q: Which of the following is equal to the heat of a chemical reaction, regardless of how the reaction…

A: We know that first of thermodynamics says energy is conserved. Energy has two forms heat and work.

Q: Calculate the number of Calories (kilocalories) in a 2000‑ and a 2500‑Cal diet that should be…

A: Proteins are biomolecules, are composed of certain monomer units such as amino acid. Amino acid are…

Q: When 3.00 g of sodium hydroxide (NaOH) was dissolved in 50.00 g of water a value of 12.00oC was…

A: The specific heat capacity for a given chemical species can be defined as the quantity of heat that…

Q: The experimental ?H is -213 kcal/mol. How much heat is released during the combustion of 45.3 grams…

A: We have to find the heat released

Q: Part C Classify reaction as exothermic or endothermic. Dehydratation hydroxide: Ba(OH),…

A: Exothermic reactions are those reactions in which heat is released during the reaction. The value of…

Q: 2. When 2.00 g of hydrazine (H,N2) decompose into 1.33 equivalents of NH3(8) and 1 equivalent of…

A: When 2.00 g of hydrazine N2H4 decompose into 1.33 equivalents of NH3(g) and 1 equivalent of N2(g) at…

Q: 1. Determine the amount of energy released when 93.6 g of liquid butane, C,H10(1 combusted.…

A: The given data: The mass of liquid butane = 93.6 g The enthalpy of formation of the given species is…

Q: What is the definition of standard heat  of formation of ethanol?  What is the definition of the…

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Q: Calculate the standard enthalpy (kJ) change of the preparation of nitric acid below: 4NH3(g) + 502g)…

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Q: 6.41 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

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Q: N2(g) +3 H2(g) 2 NH3(g) AG° = -28.0 kJ and AS° = -198.7 J/K at 323 K and 1 atm. This reaction is…

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Q: The following information is given for diethyl ether at 1 atm: AHvap(34.4C°) = 357. 5J/g A…

A: Given: The mass of liquid diethyl ether is 30.40 g. The initial and final temperature of the sample…

Q: What is the quantity of heat evolved at constant pressure when 30.5 g H2O(l) is formed from the…

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Q: When 3.00 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 11.00oC was…

A: The heat of the solution produced when 3.0 g of sodium hydroxide is dissolved in 100 g of water, is…

Q: 1) The molar enthalpy of combustion of ethyne, C2 H2 (g), is -1300 kJ/mol. a) Write a thermochemical…

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Q: An unknown organic compound is being proposed as an alternative to gasoline. The enthalpy of…

A: Heat released from combustion of 0.28 L of organic compound is = 58.25 k cal

Q: Explain the cooling effect experienced when etha- nol is rubbed on your skin, given that 6.97…

A: When ethanol is rubbed on skin, cooling experience is observed. ∆H° for the conversion of liquid…

Q: heat of the reaction for the formation of methanol.

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Q: 4. How much heat is released when 29.5 grams of Cl2 (g) reacts with excess hydrogen? H2 (g) + Cl2…

A: Given, H2(g) + Cl2(g) ➝ 2HCl(g)  ∆H° = -186 kJ Note: negative sign indicate the release of energy as…

Q: 2. How much heat is absorbed during photosynthesis when 9.22 grams of glucose C6H12O6 is produced?…

A: Given that -  Balanced chemical reaction -  6CO2 + 6H2O ----> C6H12O6 + 6O2  , ∆H = +2803 kJ…

Q: d) How many kilojoules of heat are absorbed when 40.5 g of MgO(s) is decomposed into Mg(s) and 02(g)…

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Q: Given the following data: 203(g) 302(g) O(g) 20(g) NO(g) + 0;(g) → NO,(g) + 0,(g) AH=-427 kJ AH=…

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Q: True or false:  A reaction that has a Gibbs free energy of -3 kcal/mol is an endergonic…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: 5. The average fuel value of sugars is 17 kJ/g. Assuming that the sugar is the only fuel source,…

A: It is given that the average fuel value of sugars is 17 kJ/g. it implies that the average fuel value…

Q: g/mol 2. When 4.98 g of NaOH was dissolved in 49.72 g of water in a calorimeter at 23.7°C, the…

A: Question 2 :- When a 4.98 g of NaOH was dissolved in 49.72 g of water in a calorimeter at 23.7°C…

Q: What is meant when it says under the nutrition facts that one serving contains 500 calories? Is it…

A: Given: Under the nutrition facts, it says that one serving contains 500 calories.

Q: energy

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Q: 5.21 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: In order to increase one unit temperature of a substance, the amount of energy supplied in the form…

Q: Determine ΔH for the third reaction from the information given.   C3H8(g) + 3 H2O(g) ↔ 3 CO(g) + 7…

A: Calculating ∆H for the given reaction by multiplying second reaction by 3 and adding to reaction 1.

Q: Using the values provided in the table below, calculate ΔHr for the following reaction: 2CO2(g) +…

A: For the reaction: 2CO2(g) + 4H2O(g) → 2CH3OH(l) + 3O2(g)  ΔHr for the above-provided reaction has to…

Q: What is the heat of reaction (in kJ) for the forward reaction?

A: Given, In Energy profile diagram , Reactants are at Higher energy than products.

Q: 4. If the heat of formation of carbon dioxide is -393 kJ/mol, then the heat of reaction for the…

A: Heat of the formation is the amount of heat realesed when 1 mol of a substance is formed from it's…

Q: 5.21 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: The enthalpy change during dissolution is equal to the heat absorbed by the solution.…

Q: A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the…

A: Given, energy expend while sleeping =0.45 Cal/ lb h Weight of the person = 171 lb  tile length of…

Q: Given the following data, what is the value of ΔGf° (CH3OH(ℓ) at 25°C? CO(g) + 2 H2(g) ⇄ CH3OH(ℓ)…

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Q: For the reaction CO(g) + Cl2(g)  COCl2(g) G° = -62.9 kJ and S° = -137.3 J/K at 331 K and 1 atm.…

A: The given reaction is: CO(g)+Cl2(g)⇋COCl2(g) Gibbs' Free energy of the reaction, G° = -62.9 kJ at…

Q: The lower the change in free enthalpy associated with a reaction, the slower this reaction is. True…

A: Change in free energy is associated with spontaneity. The spontaneity of the reaction doesn't define…

Q: What amount of energy is released (in the form of heat) when 60.0g of 1-pentanol reacts with oxygen?…

A: Given reaction is                                           2 CH3(CH2)4OH   + 15 O2 (g)   -->…

Q: During the combustion of 35.0 g of pentane, C5H12, 627.4 kcal is released?

A: Hydrocarbons are combustion to give carbon dioxide, water and release heat energy. Given hydrocarbon…

Q: Which compound is capable of hydrogen bonding with itself? 1-PROPANOL - (71-23-8) - Physical…

A: Hydrogen bonding is the bonding of Hydrogen with any electronegative atoms such as Flurine, Oxygen…

Q: 5.61 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: To increase one unit of temperature of a subsyance. The amount of energy supplied in the form of…