a. Hot to Cold
b. cold to hot
c. liquid to solid
d. solid to liquid
correct choice is b.
Because heat ALWAYS transfers from the hot region to cold region, in order to reach thermal equilibrium.Source(s): http://answers.yahoo.com/question/index?qid=201302… Please you guys. Take a little bit time to answer my question.
The correct answer is b.
Heat is a sort of energy constituded by vibrating particles of matter the more are they excited the more are they said to be "HOT"
So I expect you would have got your answer.surf wikipedia to know more.