Chemical Thermodynamics Question 490
Question: One gram of an organic liquid X (molecular mass 78) liberates 160 J of heat on solidification. $ \Delta H_{fusion}(A) $ is:
Options:
A) 19.2 kJ/mol
B) 12.48 kJ/mol
C) 124.8 kJ/mol
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
- For 1 g liberates 160 J
$ \therefore $ 78 g liberates $ 160\times 78=1280,J/mol $
$ 12.480,kJ/mol $
