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> 如图1所示的各种自然现象的形成过程,属于凝华的是-九年级物理
如图1所示的各种自然现象的形成过程,属于凝华的是-九年级物理
题目简介
如图1所示的各种自然现象的形成过程,属于凝华的是-九年级物理
题目详情
如图1所示的各种自然现象的形成过程,属于凝华的是
题型:单选题
难度:偏易
来源:不详
答案
D
试题分析:物态变化共有六种:①熔化是物质由固态变为液态;②凝固是物质由液态变为固态;③汽化是物质由液态变为气态;④液化是物质由气态变为液态;⑤升华是物质由固态变为气态;⑥凝华是物质由气态变为固态。解决此题的关键是知道物态变化的名称,依据各选项中的物态变化进行分析即可。
A、冰雪消融是固态变成液态,是熔化现象,不符合题意;
B、露水是水蒸气遇冷凝结成小水滴,是液化现象,不符合题意;
C、雾是水蒸气遇冷凝结成小水滴并与空气中的尘埃结合形成的,是液化现象,不符合题意;
D、霜是水蒸气遇冷变成的小冰晶,是凝华现象,符合题意。
故选D。
点评:此类问题是考查对物态变化过程中的熔化现象的理解与掌握情况,判断出物质变化前后的状态是解决此类问题的关键。
上一篇 :
下列物态变化中属于升华现象的
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雨、露、霜、冰都是自然界中水
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题目简介
如图1所示的各种自然现象的形成过程,属于凝华的是-九年级物理
题目详情
答案
试题分析:物态变化共有六种:①熔化是物质由固态变为液态;②凝固是物质由液态变为固态;③汽化是物质由液态变为气态;④液化是物质由气态变为液态;⑤升华是物质由固态变为气态;⑥凝华是物质由气态变为固态。解决此题的关键是知道物态变化的名称,依据各选项中的物态变化进行分析即可。
A、冰雪消融是固态变成液态,是熔化现象,不符合题意;
B、露水是水蒸气遇冷凝结成小水滴,是液化现象,不符合题意;
C、雾是水蒸气遇冷凝结成小水滴并与空气中的尘埃结合形成的,是液化现象,不符合题意;
D、霜是水蒸气遇冷变成的小冰晶,是凝华现象,符合题意。
故选D。
点评:此类问题是考查对物态变化过程中的熔化现象的理解与掌握情况,判断出物质变化前后的状态是解决此类问题的关键。