A container is divided into two equal compartments by a partition. One compartment is initially filled with He at a temperature THe; the other compartment is filled with oxygen (O2) at temperature T02. Both gases are at the same pressure. If we remove the partition and allow the gases to mix, what will be their final temperature

The final temperature of the mixture of helium and oxygen THe + O2.

Explanation:

If we remove the compartments between helium and oxygen molecule, they will not react with each other because helium is a noble gas or stable gas due to complete its outermost shell so it cannot react with oxygen. So if they donot react with each other, no heat energy is absorbed or released and the temperature of the container remains constant. Both the molecules remain suspended in the air and donot react with each other.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.