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

Author Question: Calculate the enthalpy change (in kJ) associated with the conversion of 25.0 grams of ice at -4.00 C ... (Read 40 times)

Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
Calculate the enthalpy change (in kJ) associated with the conversion of 25.0 grams of ice at -4.00 C to water vapor at 109.0 C. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively.
 
  For H2O, Hfus = 6.01 kJ/mol and Hvap = 40.67 kJ/mol. A) 64.8
  B) 75.9
  C) 11100
  D) 12000
  E) 112

Question 2

What is the molecular formula for heptane?
 
  A) C6H12
  B) C6H14
  C) C7H14
  D) C7H16
  E) C7H18



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

B

Answer to Question 2

D




Brittanyd9008

  • Member
  • Posts: 500
Reply 2 on: Aug 27, 2018
:D TYSM


alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

For a complete list of videos, visit our video library