How many joules of heat are absorbed when 70.0 g of water is completely vaporised at its boiling point?

The amount of heat energy absorbed by the substance to change completely form liquid at its boiling point to gaseous state is ______J

How many calories of heat will be absorbed when 3 kg of ice at 0^(@)C melts ?

The heating curve of a particular substance in solid state is a shown in the figure .choose the correct alternative The amount of heat energy absorbed by the substacne to change completely from liquid at its boiling point to gaseous state is _______J

How many calories of heat will be absorbed when 2kg of ice at 0⁰C melts ? (Specific latent heat of fusion of ice = 80 cal/g)

Calculate the enthalpy change when 2.38 g of carbon monoxide (CO) vaporise at its normal boiling point.

How many calories of heat will be absorbed when 2kg of ice at 0^(@)C melts ? ( Specific latent heat of fusion of ice = 80 cal //g )