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 559 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
Gracias!

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut
Wheals are formed in reaction to scratch testing and intradermal testing of allergens. Wheals are formed in reaction to scratch testing and intradermal testing of allergens.
Influence of enzyme-substrate affinity on the rate of an enzyme-catalyzed reaction. Influence of enzyme-substrate affinity on the rate of an enzyme-catalyzed reaction.
Determining the order and rate constant of an irreversible first-order reaction Determining the order and rate constant of an irreversible first-order reaction
The thymine dimer photolyase: Structures of FADH- and FADH+ and the likely reaction pathway The thymine dimer photolyase: Structures of FADH- and FADH+ and the likely reaction pathway
Sodium has a strong reaction to water Sodium has a strong reaction to water
Video: Genetics of Cancer

For a complete list of videos, visit our video library