Latent Heat App's MCQs & e-Book PDF Download - 258

Specific latent heat of vaporization is

1. the amount of heat required to raise the temperature of a 1 kg of a substance by 1 K
2. the amount of heat required to change the phase of a substance from liquid to gas without any change in temperature
3. the amount of heat required to change the phase of a 1 kg of substance from solid to liquid without any change in temperature
4. the amount of heat required to change the phase of a 1 kg of substance from liquid to gas without any change in temperature