Explain why it is a disadvantage for some purposes that the specific heat capacity of all materials decreases at low temperatures. Two blocks with different temperatures had entropies of 10 J/K and...

Explain why it is a disadvantage for some purposes that the specific heat capacity of all materials decreases at low

temperatures.

Two blocks with different temperatures had entropies of 10 J/K and 35 J/K before they were brought in contact. What can

you say about the entropy of the combined system after the two came in contact with each other?