Pure water boils at 100 ∘ C, has a specific latent heat of vaporisation of 2260kJ/kg and a specific heat capacity of 4200J/(kg ∘ C).Part AEnergy to boil waterHow much energy is required for 2.0kg of water to boil away if it is already at 100 ∘ C?

2.0g of water at 100 ∘ C is boiled without the temperature changing. The latent heat of vaporisation of water is 2260000J/kg. How much energy is needed to boil the water?

(f)     While a kettle boils, 0.018 kg of water changes to steam.Calculate the amount of energy required for this change.Specific latent heat of vaporisation of water = 2.3 × 10 6 J / kg.

How much energy does it take to boil 100 mL of water? (Refer to table of constants for water.)A.100 mL × × × 6.03 kJ/mol = 33.5 kJB.100 mL × × × (–285.83 kJ)/mol = –1586 kJC.100 mL × × × 4.186 kJ/mol = 23.2 kJD.100 mL × × × 40.65 kJ/mol = 226 kJ

When 40 kJ of energy is transferred to a quantity of a liquid substance, its temperatureincreases by 20 K. When 600 kJ of energy is transferred to the same quantity of the liquid atits boiling temperature, it vaporizes completely at constant temperature. What isspecific latent heat of vaporizationspecific heat capacity of the liiquid

1695 kJ of energy is transferred to water at 100 °CThe specific latent heat of vaporisation of water is 2.260 × 10 6 J / kgCalculate the mass of water changed into a gas at 100 °CEnergy transferred = mass x specific latent heat