Calculate the gibbs free energy change for the melting

Assignment Help Chemistry
Reference no: EM13171802

The molar enthalpy of fusion of solid silicon is 46.4 kJ mol-1, and the molar entropy of fusion is 27.6 J K-1 mol-1.

(a) Calculate the Gibbs free energy change for the melting of 1.00 mol of silicon at 1.71E+3 K.
(b) Calculate the Gibbs free energy change for the conversion of 2.98 mol of solid silicon to liquid silicon at 1.71E+3 K.
(c) Will silicon melt spontaneously at 1.71E+3 K?
(d) At what temperature are solid and liquid silicon in equilibrium at a pressure of 1 atm?

Reference no: EM13171802

Questions Cloud

How much heat would be released by its complete combustion : If a bottle of nail polish remover contains 177 ml of acetone, how much heat would be released by its complete combustion? The density of acetone is .788 g/ml
Find the specific heat capacity : A piece of metal, mass of 8.50 g is heated to a temperature of 95.00 c. It is immediately placed in a calorimeter. Find the specific heat capacity?
Are there any good approximation available : Given that the Ka of boric acid is 5.8x10^-10M, what is the pH of a 0.50M boric acid solution? Are there any good approximation available?
Symbols are different from signs in that symbols : Symbols are different from signs in that symbols
Calculate the gibbs free energy change for the melting : The molar enthalpy of fusion of solid silicon is 46.4 kJ mol-1, and the molar entropy of fusion is 27.6 J K-1 mol-1.
The fraction of butane in the anti and gauche conformers : Determine the fraction of butane in the anti and gauche conformers at equilibrium.
Lifestyle and social organization upper paleolithic people : An archaeologist who wanted to understand the lifestyle and social organization of Upper Paleolithic peoples would get the most useful information by studying
State at what concentration does hydrocyanic acid : At what concentration does hydrocyanic acid (ka= 4.9 x 10^-10) exhibit 0.05 percent ionization? Assume the temperature to be 25*C
Define what are the equilibrium pressures of n2o4 : What are the equilibrium pressures of N2O4 and NO2 when 0.61 mol of each gas are introduced

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the enthalpy change for any reaction

The enthalpy change for any reaction can be obtained by subtracting the sum of the enthalpy changes of formation of the reactants from the sum of the enthalpy changes of formation of the products.

  What is the new water level in the cylinder

A graduated cylinder contains 148 mL of water. A 11.0 g piece of iron (density = 7.86 {g/cm^3}) and a 19.0 g piece of lead are added. What is the new water level in the cylinder? Density of the lead is 11.3g/ml

  Calculate the molarity of a solution

Calculate the molarity of a solution made by dissolving 0.850 grams of Na2SO4 in enough water to form exactly 930 mL of solution.

  Compute the mass of salt required

Compute the mass of salt required to bring the freezing point of 200 mL of H 2 O from 0 degrees C to -5 degrees C.

  Draw molecule by placing atoms on grid

When cyclopentane is exposed to Br2 in the presence of light, reaction occurs. Write the formulas of all possible monobromination products. Draw molecule by placing atoms on grid.

  What was the ph of that solution

A 250.0 ml sample of gaseous hydrogen bromide, measured at 22.9 C and 0.930 atm, was dissolved in sufficient pure water to form 250.0 ml of solution. What was the pH of that solution.

  Explain model of the enzyme substrate complex

In the first step of the trypsin mechanism, the side-chain oxygen of Ser 195 attacks the carbonyl carbon of the substrate. Use PyMOL and your model of the enzyme substrate complex to determine the distance between these two atoms.

  Find the number of moles of water

find the number of moles of water that can be formed if you have 218 moles of hydrogen gas and 104 moles of oxygen gas

  Explain what is the final volume of the balloon

What is the final volume of the balloon? Assume ideal-gas behavior. A very flexible balloon with a volume of 1.2 L at 1.0 atm at 300 K is allowed to rise to the stratosphere

  How old is unit q and how old is unit s

Radioactive isotope X has been found in rock units S and Q. Isotope X breaks down into isotope Z with a half life of 250 million years.

  What will happen if the volume of the container is reduced

A reaction vessel contains these compounds at equilibrium. What will happen if the volume of the container is reduced by 50% at constant temperature?

  How much energy in joules would be absorbed

The density of liquid oxygen at its boiling point is 1.14 {kg/L} , and its heat of vaporization is 213 {kJ/kg} . How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd