In order for radiation to transfer heat, A electromagnetic waves must be transmitted B objects must be in direct physical contact C particles must circulate and move in a liquid or gas D thermal energy must move from cold to hot objects.

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: