This topic contains a solution. Click here to go to the answer

Author Question: Use the bond enthalpy data given to estimate the heat released when 25.0 g of acetylene gas, C2H2, ... (Read 59 times)

madimontg

  • Full Member
  • ***
  • Posts: 127

Question 1

Use bond energies to estimate the enthalpy of formation of HBr(g).
         BE(H–H)   = 436 kJ/mol
         BE(Br–Br) = 192 kJ/mol
         BE(H–Br)  = 366 kJ/mol
◦ +262 kJ/mol
◦ +104 kJ/mol
◦ +52 kJ/mol
◦ –52 kJ/mol
◦ –104 kJ/mol

Question 2

Use the bond enthalpy data given to estimate the heat released when 25.0 g of acetylene gas, C2H2, burns in excess oxygen to yield carbon dioxide and water vapor at 25°C.
         BE(C–C) = 347 kJ/mol
         BE(C≡C) = 812 kJ/mol
         BE(C=O in CO2) = 799 kJ/mol
         BE(C–H) = 414 kJ/mol
         BE(O–H) = 460 kJ/mol
         BE(O=O) = 498.7 kJ/mol
◦ 16.8 kJ
◦ 364 kJ
◦ 447 kJ
◦ 1180 kJ
◦ 1230 kJ


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by madimontg on Nov 5, 2023

delmiss

  • Full Member
  • ***
  • Posts: 152
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 32% of students answer this correctly




madimontg

  • Member
  • Posts: 127
Reply 2 on: Nov 5, 2023
Excellent


nguyenhoanhat

  • Member
  • Posts: 332
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

For a complete list of videos, visit our video library