Calculate the heat of combustion of a compound, if 0.06mole of heat on burning raise the temperature of 400gm of water by 10k (specifoc heat of water = 4.2)

Answer 1

First, let's calculate the heat energy absorbed by the water:

Heat energy absorbed by water = mass of water x specific heat x change in temperature
= 400g x 4.2 J/g°C x 10°C
= 16800 J

Since 0.06 moles of the compound produces this amount of heat, we can calculate the heat of combustion of the compound:

Heat of combustion = Heat energy absorbed by water / Number of moles
= 16800 J / 0.06 moles
= 280,000 J/mol

Therefore, the heat of combustion of the compound is 280,000 J/mol.