Question

during the formation of a solution, which step is always an exothermic process? A) the mixing...

during the formation of a solution, which step is always an exothermic process?

A) the mixing of solute particles and solvent particles with one another

B) the overall solution process

C) the separation of solute particles from one another

D) the separation of solvent particles to accommodate solute particles

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The overall enthalpy change during the process of forming a solution involves three terms: separating solvent...
The overall enthalpy change during the process of forming a solution involves three terms: separating solvent molecules (ΔH°solvent), separating solute particles (ΔH°solute), and forming new solute-solvent associations (ΔH°solution). The overall process of forming a solution is endothermic if a. IΔH°solute + ΔH°solventI > IΔH°solutionI b. IΔH°solute + ΔH°solventI = IΔH°solutionI c. IΔH°solute + ΔH°solventI < IΔH°solutionI d. ΔH°solute + ΔH°solvent = 0 e. ΔH°solution = 0
Part A: A hypothetical solution forms between a solid and a liquid. The values of the...
Part A: A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy Separation of Solute 17.5 kJ/mol Separation of Solvent 28.8 kJ/mol Formation of Solute-Solvent Interactions -90.7 kJ/mol solute Calculate the enthalpy of solution in kilojoules per mole of solute. Enter your answer numerically in kilojoules per mole of solute. Part B: A 4.00 m solution of KCl was prepared using 1.00...
Consider a solution made from a nonvolatile solute and a volatile solvent. Which statement is true?...
Consider a solution made from a nonvolatile solute and a volatile solvent. Which statement is true? a) The vapor pressure of the solution is always greater than the vapor pressure of the pure solvent. b) The boiling point of the solution is always greater than the boiling point of the pure solvent. c) The freezing point of the solution is always greater than the freezing point of the pure solvent.
The formation of ammonia from elemental nitrogen and hydrogen is an exothermic process.                   N2(g) +...
The formation of ammonia from elemental nitrogen and hydrogen is an exothermic process.                   N2(g) + 3 H2(g) ⇌ 2 NH3(g)                                 ΔH = -92.2 kJ How would a system initially at equilibrium respond in order to counteract each of the following changes? Answer with “runs to the right”, “shifts to the left”, or “no effect”. a) addition of hydrogen ______________________________________ b) removal of ammonia ______________________________________ c) increasing the pressure _____________________________________ d) increasing the temperature __________________________________ e) removal of...
1) The enthalpy (heat) of solution may be either positive or negative. If ΔHsoln is endothermic,...
1) The enthalpy (heat) of solution may be either positive or negative. If ΔHsoln is endothermic, will the solute dissolve in the solvent? Which other quantity plays a role? 2) The solubility of methanol (H3COH) in water is much higher that that of decane (C10H22; another component of gasoline). Why is this so? 3) When liquid H2O freezes at 0°C and 1 atm, is this process exothermic or endothermic, or may it depend on further conditions?
Q11 : The phenomenon involved in crystallization techniques is A. None of the above B. Both...
Q11 : The phenomenon involved in crystallization techniques is A. None of the above B. Both of the above C. Parallel displacement of faces D. Antiparallel displacement of faces Q12 : Which method is usually used to separate coloured substances from each other? A. Evaporation B. Chromatography C. Simple distillation D. Centrifugation Q13 : How a mixture of isopropyl alcohol and water is be separated? A. Two step crystallization B. Two step distillation C. Separating funnel D. One step distillation...
4 part question A solution is supersaturated when A. it is in contact with solute not...
4 part question A solution is supersaturated when A. it is in contact with solute not dissolved B. addition of a crystal of the solute starts crystallization of excess solute C. it is formed from two completely miscible liquids D. it is a homogeneous mixture of the solute and solvent E. all of the statements given are true When solute and solvent are mixed, and solute-solvent attractions are stronger than solute-solute and solvent-solvent attractions, A. the entropy change is minimal...
1. Sodium forms a positive ion (Na+). Which change occurs during the formation of this ion?...
1. Sodium forms a positive ion (Na+). Which change occurs during the formation of this ion? A sodium atom gains a proton. A sodium atom gains an electron. A sodium atom loses an electron. A sodium atom loses a proton. 2. Which process occurs when an object is charged by induction? Free electrons are pulled away from their nuclei to flow through an object. An object produces electrons that are transferred to another object. Excess electrons move from one object...
Determine the molality of a solution of ethanol dissolved in methanol for which the mole fraction...
Determine the molality of a solution of ethanol dissolved in methanol for which the mole fraction of ethanol is 0.397. Give your answer to 2 decimal places Calculate the boiling point (in degrees C) of a solution made by dissolving 6.81 g of sucrose (C12H22O11) in 99.7 g of acetone. The Kbp of the solvent is 1.71 K/m and the normal boiling point is 56.2 degrees C. Give your answer to 2 decimal places When 11.8 g of an unknown,...
The income summary has a zero balance after which step in the closing process a. Step...
The income summary has a zero balance after which step in the closing process a. Step 2 b. Step 3 c. The income summary is permanent and therefore not closed d. Step 4 e. Step 1 On June 30, the Cash account of Majeau Company had a normal balance of $4,300. During July the account was debited for a total of $3,400 and credited for a total of $3,600. What was the balance in the Cash account on August 1?...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT