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

Author Question: Sodium reacts violently with water according to the equation:2 Na(s) + 2 H2O(l) 2 NaOH(aq) + ... (Read 50 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
on: Feb 15, 2020

Question 1

Without doing any calculations, determine whether the standard entropy change, ΔS° is positive or negative for each of the following reactions.

reaction 1: S(s, rhombic) + O2(g) → SO2(g)
reaction 2: 2 SO2(g)+ O2(g) → 2 SO3(g)

◦ ΔS° is positive for both reactions.
◦ ΔS° is negative for both reactions.
◦ ΔS° is positive for reaction 2 but negative for reaction 1.
◦ ΔS° is positive for reaction 1 but negative for reaction 2.

Question 2

Sodium reacts violently with water according to the equation:

2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g)


The resulting solution has a higher temperature than the water prior to the addition of sodium. What are the signs of ΔH° and ΔS° for this reaction?
◦ ΔH° is negative and ΔS° is negative.
◦ ΔH° is positive and ΔS° is positive.
◦ ΔH° is negative and ΔS° is positive.
◦ ΔH° is positive and ΔS° is negative.
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 xclash on Feb 15, 2020

akpaschal

  • Sr. Member
  • ****
  • Posts: 342
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 50% of students answer this correctly


xclash

  • Member
  • Posts: 681
Reply 2 on: Feb 15, 2020
Thanks for the timely response, appreciate it

samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

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

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Evaluation of a child for cystic fibrosis with a sweat chloride test. Sweat is being collected under Evaluation of a child for cystic fibrosis with a sweat chloride test. Sweat is being collected under
Rackstraw Downes, Presidio in the Sand Hills Looking East with ATV Tracks and Water Tower. Rackstraw Downes, Presidio in the Sand Hills Looking East with ATV Tracks and Water Tower.
A typical purified water system A typical purified water system
Rinse the soap off completely from fingertips to elbows. Water flows off the forearms near the ... Rinse the soap off completely from fingertips to elbows. Water flows off the forearms near the ...
Water resources Water resources
The Best Way to Meet Your Daily Water Needs The Best Way to Meet Your Daily Water Needs
Video: Sister chromatids of a metaphase chromosome animation

For a complete list of videos, visit our video library