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2022年初中物理：凝华
2022-07-19'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 凝华定义：物质从气态变成固态的过程，需要放热。 凝华现象： ①霜和雪的形成(水蒸...
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2022年初中物理：凝固点的因素
2022-07-19'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 影响熔点(凝固点)的两大因素 ①压强。平常所说的物质的熔点，通常是指一个大气压时...
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2022年初中物理：升华和凝华
2022-07-19'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 升华和凝华 物质从固态直接变成气态的过程叫升华，物质在升华时要吸热，具有制冷作...