Concise Physics ICSE Volume II page 265 mentions the following:
The specific heat capacity of the same substance is different in its different phases. The specific heat capacity of water is 4200 J kg^-1 K^-1, of ice is 2100 J kg^-1 K^-1 and of steam is 460 J kg^-l K^-l.
After reading the text I searched some other books and the internet. But I couldn't get a convincing answer which explains why the same substance's specific heat capacity differs in different state of matter(phases). So could anyone plz explain why it happens so?