Question

What is specific latent heat of vporization and specific latent heat of fusion? An electrical kettle with a 2.0kW. heating element has a heat capacity of 400JK-1. A 1.0kg of water at 20 degree celsisus is placed in the kettle. The kettle is switched on and at 13 minutes later the mass of water remaing is 0.5kg. Ignoring heat losses calculate a value for specific latent heat of vaporization of water. The specific heat capacity of water is 4200 JKg-1 K-1.