Ethylene glycol (specific heat 2.42 j/g°C) is used as a coolant in automotive engines. Calculate the energy released (q)

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

did anyone actually do this? like if anyone has submitted this i rly need .