What is a periodic table

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)