Latent Heat of...                   Definition    Standard value (joule per gram)
condensation (Lc) refers to the heat gained when water vapor changes into a liquid                     2500
fusion (Lf) refers to the heat lost or gained when liquid water changes to ice or vice versa                      333
sublimation (Ls) refers to the heat lost or gained when ice changes to vapor or vice versa                     2833
vaporization (Lv) refers to the heat lost when liquid water changes into vapor                    -2500