Question

An iron cube has each edge 30cm long at 20°C. What will be the new surface area of a face when the temperature rises to 90°C and the volume at the same final temperature ?

Answer 1

My answer is that the volume of iron will remain same because volume is the only thing which always remains constant.

Now of we talk about surface area of a face, then it'll also remain same BECAUSE the temperature rise is only to 90° whereas iron has a very high boiling point so I think 90° should only produce ziggles in the cube particles