What is sublimation? Md. Saifur Rahman If a solid directly converts to gas on heating and the gas directly converts to solid on cooling, this phenomenon is called sublimation.You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?