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

Author Question: A mixture of hydrogen and chlorine remains unreacted until it is exposed to ultraviolet light from a ... (Read 79 times)

SO00

  • Hero Member
  • *****
  • Posts: 568
on: Mar 21, 2021

Question 1

A chemical reaction is most likely to be spontaneous if it is accompanied by

◦ increasing energy and increasing entropy
◦ lowering energy and increasing entropy
◦ increasing energy and decreasing entropy
◦ lowering energy and decreasing entropy
◦ None of these are correct.

Question 2

A mixture of hydrogen and chlorine remains unreacted until it is exposed to ultraviolet light from a burning magnesium strip. Then the following reaction occurs very rapidly:
 
 
 
H2(g) + Cl2(g) → 2HCl(g)
ΔG = –45.54 kJ
 
 
 
 
ΔH = –44.12 kJ
 
 
 
 
ΔS = –4.76 J/K
Which of the following is consistent with this information?


◦ The reactants are thermodynamically more stable than the products.
◦ The reaction has a small equilibrium constant.
◦ The ultraviolet light raises the temperature of the system and makes the reaction more favorable.
◦ The negative value for ΔS slows down the reaction.
◦ The reaction is spontaneous, but the reactants are kinetically stable.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by SO00 on Mar 21, 2021

Andromeda18

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Mar 21, 2021
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


SO00

  • Member
  • Posts: 568
Reply 2 on: Mar 21, 2021
YES! Correct, THANKS for helping me on my review

xiazhe

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Light palpation with the hands Light palpation with the hands
Normal combustion is a smooth, controlled burning of the air–fuel mixture. Normal combustion is a smooth, controlled burning of the air–fuel mixture.
Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ... Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ...
Apply light stroking with the palms from hip to ankles as a connecting and finishing technique. ... Apply light stroking with the palms from hip to ankles as a connecting and finishing technique. ...
Apply light tapotement on the head. Tapping lightly with the fingertips works well for this purpose. Apply light tapotement on the head. Tapping lightly with the fingertips works well for this purpose.
Liquid Water Properties compared with n-pentane, nonpolar, non-hydrogen bonding liquid Liquid Water Properties compared with n-pentane, nonpolar, non-hydrogen bonding liquid
Video: Bulk flow - Factors that influence bulk flow

For a complete list of videos, visit our video library