For ice melting what would be the  * it either positive or negative  delta h if the system  delta h of surroundings  delta s of the system  delta s of the surroundings

Q: A piece of metal weighing 9.00 g  at a temperature of 31.9 oC  was placed in a calorimeter in 14.75…

A: Let the specific heat of metal be c. The thermal equilibrium can be expressed as follows-

Q: Which of the following represents an increase in the potential energy of the system? A. Na → Na+ +…

A: Answer:In exothermic process, system loses the energy and its potential energy decreases and in an…

Q: The system ice (s) + energy > water (l) is in equilbrium at 0 degrees Celsius in a closed container.…

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

Q: How do we define a system? What is the difference between a system and its surroundings?

A: Given question is : Define system = ?  And What is the difference between a system and its…

Q: Calculate (in kJ/mol) the standard Gibbs free energy change (AGºrxn) for the oxidation of sulfur…

A: The given reaction is  2SO2(g) + O2(g) → 2SO3(g)  ∆Hrxn = -198.4 kJ = 198400 J  ∆Srxn = -187.9 J/K…

Q: Consider the following data. N₂(g) + O₂(g) = 2 NO(g) 2 H₂O(1)=2 H₂(g) + O₂(9) 4 NO(g) + 6 H₂0 (1) =…

A: Hess's law states that the enthalpy of a reaction is independent of the number of steps or chemical…

Q: What are the accepted values for the molar heats of solution for sodium bicarbonate and sodium…

A: Using appendix for the accepted values of molar heats of solution.

Q: The Δ?vapΔHvap of a certain compound is 21.71 kJ·mol−121.71 kJ·mol−1 and its Δ?vapΔSvap is 58.38…

A: Given, ∆Hvap=21.71 kjmol∆Svap=58.38 jmol K

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

A:

Q: 25.0 mL of 1.00 M HCl at 23.5oC react with 25.0 mL 1.00 M NaOH in a styrofoam calorimeter whose…

A: The energy of a system is always conserved. The amount of heat released or absorbed by the reaction…

Q: When you add water to a small amount of ammonium chloride (NH4CI), the solid dissolves and the…

A: When you add water to a small amount of ammonium chloride (NH4CI), the solid dissolves and the…

Q: Given the following data, calculate the heat (q) transferred into/out of the system when 100 g of…

A: Answer:Number of moles of any substance in a given sample is equal to the ratio of its mass and…

Q: A generic solid, X, has a molar mass of 84.1 g/mol.84.1 g/mol. In a constant‑pressure calorimeter,…

A: Given: The mass of solid and water is 22.3 g and 213 g, respectively. The initial and final…

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: For each of the following, determine the value of ΔH2 in terms of ΔH1.   a. A+B→2C,ΔH1…

A: Determination of enthalpy change of the reaction: (a) The given reaction is as follows: A    +    B…

Q: Calculate the heat of the reaction of AICI3

A: The formation of aluminum chloride is given by the reaction 2 Al(s) + 3 Cl2(g) − → 2 AlCl3(s)

Q: A solution is made by mixing 228.0 mL228.0 mL of ethanol initially at 15.3 ∘C15.3 ∘C with 228.0…

A: Law of conservation of energy-    "Energy neither be created nor be destroyed,it can convert fro…

Q: Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 19.3 g…

A: In the given solvation process the temperature of the water is decreased. Hence the solvation…

Q: A app.101edu.co A Apps MyUSU O Outlook Canvas Labflow OneNote 101 Chem101 Tophat U USU Tutoring…

A: Given, Moles of an unknown solid = 0.700 mol. Volume of the solution = 150.0 mL. The density of the…

Q: The molar enthalpy of solution is the amount of heat absorbed or released when a mole of that…

A: Answer: This question is based on energy conservation where heat released during dissolution of a…

Q: When 9.85 grams of potassium hydroxide (KOH) are dissolved in 150.0 grams of water at 25.0 °C in an…

A:

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: why do we use 8.314 J/mole k as the value for R in the determination of the heat of vaporization of…

A:

Q: The specific heat capacity of a substance is defined as the amount of energy needed to increase the…

A: Hey, since there are multiple questions posted, we will answer first question. Thus, first question…

Q: C OEt Ph A 1. (Et)₂CuLi 2. H30* NaOEt EtOH heat H Ph 1. N-H [H*] 2. B 3. H30, heat E D OEt H3O*,…

A: This is based on multistep organic synthesis

Q: Consider the dissolution of CaCl2: CaCl2(s) -> Ca2+(aq) + 2Cl-(aq), delta H= -81.5 kJ An 11.4…

A: The heat of solution is given as :

Q: 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The…

A: Given: Moles of unknown solid = 3.15 mol Volume of solution = 150.0 mL Temperature rises by 19.41 °C…

Q: 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The…

A:

Q: When 3.25 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 10.00oC was…

A: The specific heat capacity of a substance is the amount of heat which is required to raise the…

Q: A generic solid, X, has a molar mass of 84.9 g/mol.84.9 g/mol. In a constant‑pressure calorimeter,…

A: Given data: Molar mass of X = 84.9  g/mol In a constant-pressure calorimeter, 13.0 g of X is…