ZuoTi.Pro
Question

One mole of solid Cr2O3 at 2500 K is dissolved in a large volume of a...

One mole of solid Cr2O3 at 2500 K is dissolved in a large volume of a liquid Raoultian solution of Al2O3 and Cr2O3 in which xCr2O3 = 0.2 and which is also at 2500 K. Calculate the changes in enthalpy and entropy caused by the addition. The normal melting temperature of Cr2O3 is 2538 K; assume that the ΔSm,Al2O3 = ΔSm,Cr2O3 [= 46.25 J/(mol.K)].

engineering   Chemical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

solution. ginen mole of solid (820₂,n=1mol, T = 2500k mol fraction of c82oz in solution (Al2O3+ (203) x7203 -0.2 Dsmi = 46.25change In entropy of mixing Dsmix =nRsnoluxi As mix = - nR (x luxta luxa) Xr203 0.2 Mones 0,2 smol 02 DSmix smol x 81314 I (0

0 0
Add a comment
Know the answer?
Add Answer to:
One mole of solid Cr2O3 at 2500 K is dissolved in a large volume of a...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Calculate the change in entropy when one mole of metallic aluminum is heated at one bar...

    Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol' K and 31.75 J mol' K, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 J g! The molar mass of aluminum is 26.98 g...

  • The molar volume of a cetain solid is 159.5 cm3 mol-1 at 1.00 atm and 350.05...

    The molar volume of a cetain solid is 159.5 cm3 mol-1 at 1.00 atm and 350.05 K, its melting temperature. The molar volume of the liquid at this temperature and pressure is 161.8 cm3 mol-1. At 100 atm the melting temperature changes to 350.56 K. Calculate the entropy of fusion of the solid .

  • Physical Chemistry Calculate the change in entropy when one mole of metallic aluminum is heated at...

    Physical Chemistry Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol K1 and 31.75 J mol K, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 J g1. The molar mass of aluminum is...

  • Calculate the change in entropy when one mole of metallic aluminum is heated at one bar...

    Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 ℃ to a final temperature of 750 ℃. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol-1 K-1 and 31.75 J mol-1 K-1, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 ℃) is 396.57 J g-1. The molar mass of aluminum is 26.98 g...

  • Please answer 12-17 and show work. I’m not sure which equations to use 15. The gas...

    Please answer 12-17 and show work. I’m not sure which equations to use 15. The gas above the liquid in a sealed bottle of soda is primarily carbon dioxide. Carbon dioxide is also dissolved in the soda. When the distribution of carbon dioxide between the gas and liquid is hase , , at equilibrium, molecules ofcarbon dioxide in the gas phase can stilldissolve in the iquid they strike the surface and are captured. Similarly, molecules of carbon dioxide can escape...

  • One mole of liquid naphthalene at its freezing point of 80 ˚C is brought into contact...

    One mole of liquid naphthalene at its freezing point of 80 ˚C is brought into contact with a very large ice-water bath, which remains at 0 ˚C as the naphthalene freezes and cools to 0˚C. The enthalpy of fusion of naphthalene is 19.2 kJ mol-1 and ~ C p for solid naphthalene is 180 J K-1 mol-1. Calculate the decrease in entropy for the naphthalene and the increase in entropy for the overall system (naphthalene + ice-water bath).

  • One mole of H20( is supercooled to-5.00°C at 1 bar pressure before freezing at that temperature....

    One mole of H20( is supercooled to-5.00°C at 1 bar pressure before freezing at that temperature. Calculate ASys, ASum, and ASeotal for this process. Is it spontaneous? CPm (H20, 1)- 75.3 J/mol.K CPm (H20, s)-37.7 J/mol.K AHfusion 6.008 kJ/mol Hint: remember that ASs is computed using q along a reversible path, while ASur is computed using the actual heat transfer during the freezing. For the following equilibrium reaction: Here is an ICE table, starting from no moles of pure 0z...

  • I know this is a big one but I've tried and gotten it wrong 4 times...

    I know this is a big one but I've tried and gotten it wrong 4 times and this is my last attempt. Thanks in advance! A piece of solid aluminum weighing 39.4 g at a temperature of 586 °C is placed in 394 g of liquid aluminum at a temperature of 663 °C. After a while, the solid melts and a completely liquid sample remains. Calculate the temperature after thermal equilibrium is reached, assuming no heat loss to the surroundings....

  • A gas cylinder containing carbon dioxide, CO2, 85% by volume, and nitrogen, N2, 15% by volume...

    A gas cylinder containing carbon dioxide, CO2, 85% by volume, and nitrogen, N2, 15% by volume has a volume of 2.2 m and is kept at a temperature of 20°C. You may assume the gas mixture is ideal. 0 Calculate the pressure in kPa in the cylinder when it contains 50 kg of gas. [2 marks] After a certain amount of gas has been used, the pressure decreases by 150 kPa. Calculate the mass of gas used. [2 marks] (b)...

  • Need help with these both please Two aqueous soiutions are prepared in which one contains 0.275 moles of the nonvolatile so glucose (ClO dissolved in 2500.00 g of water and the other solution con...

    Need help with these both please Two aqueous soiutions are prepared in which one contains 0.275 moles of the nonvolatile so glucose (ClO dissolved in 2500.00 g of water and the other solution contains 0.275 moles of the nonvolatile solute CaCI, dissolved in 2500.00 g of water. Describe how each of the colligative properties listed below would be affected for each of these solutions (for each olatile solut 4. is a decrease or an increase then identify which of the...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT