What is the process by which water changes from a liquid to a gas called? A. Condensation B. Evaporation C. Precipitation D. Freezing 相关知识点: 试题来源: 解析 B。解析:水从液态变为气态的过程叫蒸发。冷凝是气态变为液态。降水是指从云中降落到地面的液态或固态水。冻结是液态变为固态。
What is the process called when a liquid changes into a gas? A. Condensation B. Evaporation C. Freezing 相关知识点: 试题来源: 解析 B. Evaporation 答案:B. Evaporation 解析:液体变成气体的过程称为蒸发,对应的英文单词是 evaporation。反馈 收藏 ...
The air we breathe is a mixture of gases. What is air? A. A liquid B. A gas C. A solid D. A powder 相关知识点: 试题来源: 解析 B。我们呼吸的空气是气体的混合物。选项 A 液体错误;选项 C 固体错误;选项 D 粉末错误。反馈 收藏 ...
a liquid conforms to the shape of the container in which it is held. Although this is similar to a gas, a liquid does not expand to fill up the container like a gas. Examples
Water can exist in three states: solid, liquid, and gas. What is the state of water at room temperature? A. Solid. B. Liquid. C. Gas. D. Sometimes solid and sometimes liquid. 相关知识点: 试题来源: 解析 B。解析:在室温下,水的状态是液体。选项 A 固体不对;选项 C 气体不对;选项 D...
结果1 题目The glass is made of silica. What is glass? A. A liquid B. A gas C. A solid D. A powder 相关知识点: 试题来源: 解析 C。玻璃是由硅石制成的,玻璃是固体。选项 A 液体错误;选项 B 气体错误;选项 D 粉末错误。反馈 收藏 ...
The sand on the beach is a kind of solid. What is sand? A. A liquid B. A gas C. A solid D. A powder 相关知识点: 试题来源: 解析 C。沙滩上的沙子是一种固体。选项 A 液体错误;选项 B 气体错误;选项 D 粉末错误。反馈 收藏
Water can exist in three states: solid, liquid and gas. What is an example of water in a solid state? A. Water vapor. B. Ice. C. Rain. D. River water. 相关知识点: 试题来源: 解析 B。冰是水的固态形式;A 选项水蒸气是气态;C 选项雨是液态;D 选项河水是液态。
Thirty years ago the very existence of liquids seemed a little mysterious; today one can make fairly precise predictions of the solid-liquid-gas phase diagram and of the microscopic and macroscopic static and dynamic properties of liquids. This paper is a survey, with particular emphasis on ...
Liquified petroleum gas (LPG) is a fuel providing energy that can be found in our everyday life as it is used in many household appliances for cooking, heating, and hot water. It is called liquefied gas because it is easily transformed into a liquid. LPG needs only low pressure or refrig...