Chemistry help needed with the Temperature Change of the skillet

Anonymous
timer Asked: Nov 3rd, 2015
account_balance_wallet $5

Question Description

Exactly 13.1 ml of water at 27 degrees celsius?

is added to a hot iron skillet. all of the water is converted into steam at 100.0 degrees celsius. the mass of the pan is 1.10 kg and the molar heat capacity of iron is 25.19 J/(mole * degrees celsius). What is the temperature change of the skillet?

Tutor Answer

ipesuni
School: New York University

Thank you for the opportunity to help you with your question!

We have to first of all determine the heat required to convert the water at 27 degree Celsius to water at 100 degree Celsius plus the heat required to convert all the liquid at 100 degree C to steam at 100 degree Celsius.

Step 1

Heat required to convert the water from 27 degree Celsius to 100 degree Celsius

=mcdT

m=mass of water =13.1ml=13.1 gram as density is 1g/ml

c=specific heat of water =4.184 J/g degree C

Heat ,H1=13.1*4.184*(100-27)J=4001.1592J=4KJ

Step 2

Calculating the heat required to convert the water at 100 degree C to steam at 100 degree C

Enthalpy of vaporization of water=40.7 KJ/mol

Heat used=40.7*.727 =29.62KJ

Total Heat required by the water=29.62+4 KJ=33.62KJ

Now the heat released by iron=nCDT

n=mole =1100/55.8=19.71 mole

dT=change in temperature

33590.0592=19.71*25.91*dT

dT=65.77 degree C(answer)

Please let me know if you need any clarification. I'm always happy to answer your questions.

flag Report DMCA
Review

Anonymous
Goes above and beyond expectations !

Similar Questions
Hot Questions
Related Tags
Study Guides

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors