The process by which a solid turns directly into a gas is called___. A. sublimation B. evaporation C. condensation D. dissolution 相关知识点: 试题来源: 解析 A。解析:固体直接变成气体的过程叫升华。选项 B 蒸发是液体变成气体;选项 C 冷凝是气体变成液体;选项 D 溶解是固体在液体中分散。反馈...
A. evaporation B. sublimation C. condensation D. diffusion 相关知识点: 试题来源: 解析 B。固体直接变成气体的过程叫升华。选项 A 蒸发是液体变为气体;选项 C 冷凝是气体变为液体;选项 D 扩散是物质的一种混合方式。反馈 收藏
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
What is it called when a gas turns into a solid for a phase change? Phase Change: The conversion of the state of substance from one to another is known as the phase change. Melting, evaporating, condensation, sublimation, etc. are the examples of the phase change. ...
When a solid is converted directly to a gas, the change of state is called ___. Phase transition Generally a solid first converts into a liquid and then into a gas. But under certain conditions of temperature and pressure, certain compounds turn directly to ...
When a solid changes directly into a gas, it is called ___. A. evaporation B. condensation C. sublimation D. precipitation 相关知识点: 试题来源: 解析 C。sublimation 是固体直接变为气体的过程;evaporation 是液体变为气体;condensation 是气体变为液体;precipitation 是降水。反馈...
A. Sublimation B. Evaporation C. Condensation D. Distillation 相关知识点: 试题来源: 解析 A。固体直接变为气体的过程称为升华(Sublimation)。“Evaporation”是蒸发,指液体变为气体;“Condensation”是冷凝,气体变为液体;“Distillation”是蒸馏。本题描述的是固体到气体,所以是升华,选 A。反馈...
2), where the four conditions required for the hydrate formation in a pipeline include pressure, temperature, water and gas. The gas/liquid phase turns into three-phase flow system (gas-liquid-solid) in the pipeline as hydrates form continuously and begin to deposit on the pipe wall. At ...
A heterogeneous reaction model is developed to represent the gas–solid reaction consisting of two-step reactions: formation of a solid intermediate on the core of unreacted solid and consumption of the solid intermediate. The presented model takes into account the shrinkage of both the unreacted cor...
When it is a liquid, it can run 2 your fingers. When it is a gas, you may not 3 or feel it. Water can change from a solid to liquid or to a gas 4 . This is why we always have fresh water. Now let us find out 5 it changes. The heat of the sun turns liquid water into...