Enthalpy Change

Given that :

C_%7Bp%7D%3D7%20JK%20%5E%7B-1%7D%20mol%20%5E%7B-1%7D

Weight of

N%20_%7B2%7D

gas

%3D28%5C%2C%20gm

T_%7B1%7D%3D0%5E%7B%5Ccirc%7D%20C%20%3D273%2B0%3D273%5C%2C%20K

T_%7B2%7D%3D100%5E%7B%5Ccirc%7D%20C%20%3D273%2B100%3D373%5C%2C%20K

Now, by using :
Number of moles

%3D%5Cfrac%7B%5Ctext%20%7B%20Weight%20of%20%7D%20N%20_%7B2%7D%7D%7B%5Ctext%20%7B%20Molecular%20weight%20of%20%7D%20N%20_%7B2%7D%7D

%3D%5Cfrac%7B28%7D%7B14%7D%3D2

Now, by using

%5CDelta%20H%20%3D%20nCp%20(T_2%20-%20T_1)

%3D%202%5Ctimes%207(373-273)

%3D14%20%5Ctimes%20100%3D1400%20%5Ctext%20%7B%20Joule%20%7D

Chapter Questions
1 MCQs