Do all bodies expand on heating?

A circular metal plate expands under heating so that its radius increases by 2%. Find the approximate increase in the area of he plate if the radius of the plate before heating is 10 cm.

Expand Bt.

Fill in the blanks: _____ expand most on heating.

Expand DNA .

Is it possible that there is no increase in the temperature of a body despite being heated?

A gas expands in such a manner that its pressure and volume comply with the condition pV^2 = a constant .Will the gas cool or get heated on expansion?