Need help with heat of fusion problems

Chemistry
Tutor: None Selected Time limit: 1 Day

how much energy is released when 55.0g of water vapor at 100C cools to body temperature (37.0C)

May 6th, 2015

Amount of heat released by water is given by the formula: Q = m*c*t, where m is mass, c is specific heat capacity of water, and t is change in temperature.

m = 55.0 grams = 0.055 kg

c = 4200 Jkg-1K-1

change in T =  (100 + 273)K - (37+ 273) K = 63 K

So Q = (0.055*4200 x 63) J

= 14553 J or 14.553 Kj.

NB:

1 KJ = 1000 J.


May 6th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
May 6th, 2015
...
May 6th, 2015
Dec 11th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer