Your questions are to vague to answer considering the vast varieties and types of ceramic tile on the market. What would hold true for a clay tile (like Satillo) would be completely different for a porcelain tile (like Stoneware). Size differences, glazed or unglazed, etc (I could go on for a while) would also have an impact on the resulting answer.
You can contact a ceramic engineer directly by emailing technical@tileusa.com- Tile Council of America.