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

Author Question: Consider the reaction:2ClF3(g) + 2NH3(g) N2(g) + 6HF(g) + Cl2(g)When calculating the Hrxn, why is ... (Read 508 times)

asd123

  • Hero Member
  • *****
  • Posts: 557
on: Mar 21, 2021

Question 1

Consider the reaction:
   
When a 19.2-g sample of ethyl alcohol (molar mass = 46.07 g/mol) is burned, how much energy is released as heat?

◦ 0.417 kJ
◦ 0.571 kJ
◦ 5.71 × 102 kJ
◦ 2.63 × 104 kJ
◦ 2.40 kJ

Question 2

Consider the reaction:

2ClF3(g) + 2NH3(g) → N2(g) + 6HF(g) + Cl2(g)

When calculating the ΔH°rxn, why is the ΔHf° for N2 not important?


◦ Because nitrogen is in its standard elemental state and no energy is needed for this product to exist.
◦ Because any element or compound in the gaseous state requires a negligible amount of energy to exist.
◦ Because the products are not included when calculating ΔH°rxn.
◦ Because nitrogen is in its elemental state and does not contribute to the reaction itself.
◦ Two of these statements explain why N2is not important when calculating ΔH°rxn.
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 asd123 on Mar 21, 2021

onowka

  • Sr. Member
  • ****
  • Posts: 353
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 35% of students answer this correctly


asd123

  • Member
  • Posts: 557
Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)

billybob123

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

reaction system of photosynthesis reaction system of photosynthesis
Reaction coordinate diagram Reaction coordinate diagram
Part A - Calculating the expected number of each phenotype Part A - Calculating the expected number of each phenotype
Sodium has a strong reaction to water Sodium has a strong reaction to water
A chemical reaction is run in which 447 Joules of work is done by the system and A chemical reaction is run in which 447 Joules of work is done by the system and
Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction
Video: Coaductile pathway, Timing of contraction signal & Conduction system and ECG

For a complete list of videos, visit our video library