This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: At 2600 K, G = 775 kJ for the vaporization of boron carbide:B4C(s) 4 B(g) + C(s)Find G and ... (Read 349 times)

vicotolentino

  • Hero Member
  • *****
  • Posts: 552
on: Feb 15, 2020

Question 1

At high temperatures boron carbide vaporizes according to the equation

B4C(s) ⇌ 4 B(g) + C(s)


Which equation describes the relationship between ΔG° and ΔG for this reaction?
◦ ΔG = ΔG° + R T ln (pB ∙ [C]/[B4C])
◦ ΔG = ΔG° - 4 R T ln pB
◦ ΔG = ΔG° + 4 R T ln pB
◦ ΔG = ΔG° + R T ln pB

Question 2

At 2600 K, ΔG° = 775 kJ for the vaporization of boron carbide:

B4C(s) ⇌ 4 B(g) + C(s)


Find ΔG and determine if the process is spontaneous if the reaction vessel contains 4.00 mol B4C(s), 0.400 mol of C(s), and B(g) at a partial pressure of 1.0 × 10-5 atm. At this temperature, R T = 21.6 kJ.
◦ ΔG = -220 kJ; spontaneous.
◦ ΔG = -220 kJ; nonspontaneous.
◦ ΔG = -270 kJ; spontaneous.
◦ ΔG = -270 kJ; nonspontaneous.
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by vicotolentino on Feb 15, 2020

ambernicolefink

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Feb 15, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


vicotolentino

  • Member
  • Posts: 552
Reply 2 on: Feb 15, 2020
Gracias!

AmberC1996

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Chéri Samba, Problème d'eau. Où trouver l'eau? (The Water Problem. Where to Find ... Chéri Samba, Problème d'eau. Où trouver l'eau? (The Water Problem. Where to Find ...
How to find an angle in radians degrees for any given reciprocal trigonometric function How to find an angle in radians degrees for any given reciprocal trigonometric function
How to use the squeeze theorem to find the limit of a function How to use the squeeze theorem to find the limit of a function
How to find the components of a vector found in the first quadrant How to find the components of a vector found in the first quadrant
1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ... 1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ...
Video: Atrophy

For a complete list of videos, visit our video library