و آر ایل:https://w3e.kanazawa-it.ac.jp/math/physics/high-school_index/thermodynamics/temperature_and_heat/image/latent_heat.png
و آر ایل:https://w3e.kanazawa-it.ac.jp/math/physics/high-school_index/thermodynamics/temperature_and_heat/Latent_heat.html