Hydrogen should be a more useful coolant than water because its ...

[lbcchick]

Hydrogen should be a more useful coolant than water because its specific heat is greater. Explain why this is not the case in practice.
 
  What will be an ideal response?

Question 2

Lithium is a good material to use for a possible fusion reactor because it is so easy to handle chemically.
 
  What will be an ideal response?

[matt95]

Answer to Question 1

What is really important for the coolant is the heat capacity. The specific heat is
important because that allows us to distinguish more useful materials that can act as
coolants. The mass of hydrogen is so much less than that of water, say, that hydrogen is not
very good as a practical coolant.

Answer to Question 2

Lithium is a good material to use for thermal energy transfer in a fusion reactor,
but not for this reason. It is a rather nasty element to handle. It binds easily to many
materials with a relatively high energy output.

[lbcchick]

Thanks

[matt95]

Welcome