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

Author Question: Calculate the enthalpy change (in kJ) associated with the conversion of 25.0 grams of ice at -4.00 C ... (Read 47 times)

Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
on: Aug 27, 2018
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
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

D


Brittanyd9008

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

zacnyjessica

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

The eastern pygmy possum, weighing just 15-43 grams The eastern pygmy possum, weighing just 15-43 grams
Nursing Interventions and Prochaska's Stages of Change Nursing Interventions and Prochaska's Stages of Change
A Change of Heart A Change of Heart
Calculate ΔG° Calculate ΔG°
A typical lightning bolt may last for 0.167 s and transfer 1.07 x 10 electrons. Calculate the ... A typical lightning bolt may last for 0.167 s and transfer 1.07 x 10 electrons. Calculate the ...
Gray Morris's Calculate with Confidence, Canadian Edition, 2nd Edition Gray Morris's Calculate with Confidence, Canadian Edition, 2nd Edition
Video: Digestion Animation

For a complete list of videos, visit our video library