If the enthalpy of mixing for a regular solution is positive, will you get a solid...

Question

Question

If the enthalpy of mixing for a regular solution is positive, will you get a solid solution for sure? If not, please explain

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

when the enthalpy of mixing is positive, mixing is endothermic while negative enthalpy of mixing signifies exothermic mixing. In ideal mixtures the enthalpy of mixing is null.

The excess enthalpy relative to the mechanical mixture is known as the enthalpy of mixing, ΔHmix. This can either be positive or negative, or zero. If ΔHmix = 0, the solution is said to be ideal, and for ΔHmix ≠ 0, the solid solution is said to be non-ideal.

Add a comment

Answer 2

Similar Homework Help Questions

In the lab, an aqueous solution of HCl reacts with a powdered solid in a coffee-cup...

In the lab, an aqueous solution of HCl reacts with a powdered solid in a coffee-cup calorimeter. The temperature of the solution increases from 19.5°C to 23.2°C. What conclusion can you draw about the change in enthalpy of reaction? Be sure to clearly define the system and surroundings.
A mixing chamber operates steadily at 200 kPa with 2 kg/s of saturated liquid H2O mixing...

A mixing chamber operates steadily at 200 kPa with 2 kg/s of saturated liquid H2O mixing with 1 kg/s of superheated steam at 250°C. Determine the exit specific enthalpy and exit temperature if the heat transfer rate into the mixing chamber is 150 kW throughout this process. Note: I know how to solve for the exit specific enthalpy, but I am not sure how to solve for the exit Tempurature. Could you please show me how to solve for the...
Explain the role of the entropy of mixing of reactants and products in determining the compositio...

Explain the role of the entropy of mixing of reactants and products in determining the composition of a reaction mixture at equilibrium. In what situation will the physical process of mixing have the largest effect? Explain why. *As you read over your answer make sure that you have made it clear you understand the definition of equilibrium from the perspective of reaction spontaneity. Be sure to give enough information to show your understanding of the context and meaning of other...

In this lab, you will be breathing into a 5 L mixing chamber. The mixing chamber will start with ...

In this lab, you will be breathing into a 5 L mixing chamber. The mixing chamber will start with “regular” air (20.93 vol% O2, 0.04 vol% CO2, and 79.03 vol% N2). You will inhale air through your nose (which is exposed to “regular” air) and exhale through your mouth into the mixing chamber. As your exhaled air is added into the chamber, an equal volume of air leaves the other end of the chamber so that the system remains at...
Calculate the pH of the solution created by mixing 0.5 g solid sodium acetate with 50...

Calculate the pH of the solution created by mixing 0.5 g solid sodium acetate with 50 mL of 0.1 M acetic acid. The Ka of acetic acid is 1.8x10-5
(50%) Elements A and B form a liquid solution, which at 1000%, extend from pure A...

(50%) Elements A and B form a liquid solution, which at 1000%, extend from pure A to pure B. This solution is known to be regular. At the composition XB = 0.4 , the activity of A is 0.25 based on pure liquid A as its standard state. (R-8.314J/mole °K) 1" (1590) Define what is meant by a "regular solution" for the molar Gibbs Free Energy of the solution. What are the general significances of the magnitude and sign of...

Coffee Cup Calorimetry: Solution Enthalpy When a solid dissolves in water, the solution may become hotter...

Coffee Cup Calorimetry: Solution Enthalpy When a solid dissolves in water, the solution may become hotter or colder. The dissolution enthalpy (dissolving) can be determined using a coffee cup calorimeter. Thermometer In the laboratory a general chemistry student finds that when 1.46 g CaCl(s) is dissolved in 113.70 g water, the temperature of the solution increases from 22.49 to 24.83 °C. Cardboard or Styrofoam lid The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined...
Predict the vapor pressure of a solution prepared by mixing 3.50 x 1010 ng solid potassium...

Predict the vapor pressure of a solution prepared by mixing 3.50 x 1010 ng solid potassium phosphate with 0.175 kg of water at 77 ° F. The vapor pressure of pure water is 23.76 torr. 0.0151 0.397 1.59 1.51
Need help with this question please. A solution is made by mixing 47.0 mL of 2.88...

Need help with this question please. A solution is made by mixing 47.0 mL of 2.88 M Pb(NO), with 20.0 mL of 1.79 x 10°M Nal? K, for Pbl:(s) is 9.8 x 10" a) Will a solid form? Show reasoning. b) If you answered "yes" to part a) how many grams of Pbl (s) will form? c) What are the concentrations of [Pb 1,[11. [NO] and [Na') at equilibrium

Calculate the Ni+2 concentration of a solution made by mixing 0.020 mole of solid Ni(NO3)2 into...

Calculate the Ni+2 concentration of a solution made by mixing 0.020 mole of solid Ni(NO3)2 into 1.0 liter of 0.22 M NH4OH. Kdfor Ni(NH3)4 2+ = 1.1 X 10^-8

If the enthalpy of mixing for a regular solution is positive, will you get a solid...

Homework Answers

Add Answer to:
If the enthalpy of mixing for a regular solution is positive, will you get a solid...

Post as a guest

Earn Coins

In the lab, an aqueous solution of HCl reacts with a powdered solid in a coffee-cup...

A mixing chamber operates steadily at 200 kPa with 2 kg/s of saturated liquid H2O mixing...

Explain the role of the entropy of mixing of reactants and products in determining the compositio...

In this lab, you will be breathing into a 5 L mixing chamber. The mixing chamber will start with ...

Calculate the pH of the solution created by mixing 0.5 g solid sodium acetate with 50...

(50%) Elements A and B form a liquid solution, which at 1000%, extend from pure A...

Coffee Cup Calorimetry: Solution Enthalpy When a solid dissolves in water, the solution may become hotter...

Predict the vapor pressure of a solution prepared by mixing 3.50 x 1010 ng solid potassium...

Need help with this question please. A solution is made by mixing 47.0 mL of 2.88...

Calculate the Ni+2 concentration of a solution made by mixing 0.020 mole of solid Ni(NO3)2 into...

If the enthalpy of mixing for a regular solution is positive, will you get a solid...

Homework Answers

Add Answer to: If the enthalpy of mixing for a regular solution is positive, will you get a solid...

Post as a guest

Earn Coins

Add Answer to:
If the enthalpy of mixing for a regular solution is positive, will you get a solid...