讀取中
正在加載···
公開精選文章

✶乾冰為什麼會產生煙霧?The Sublime Effects of Dry Ice

The Sublime Effects of Dry Ice
#素養 #數位·科技·科學
1/2 解析英語

聽講解

 

聽朗讀

難度 收藏文章
乾冰為什麼會產生煙霧?The Sublime Effects of Dry Ice
乾冰是一種用途廣泛的奇特物質。
>> ✶《月球密典》: 打造月球上最豐富的美術館 Art on the Moon
目錄 /
More to Learn
/
中文翻譯(& 答案)

    Dry ice is a remarkable substance with many versatile uses. It might look like a simple block of white-colored ice, but this could not be further from the truth. While regular ice is the solid form of water or H2O, dry ice is the solid state of carbon dioxide or CO2. Temperatures must be incredibly low to freeze carbon dioxide gas into a solid form. This unique property makes dry ice ideal for tasks such as flash-freezing produce, keeping foods cold during transit, and even removing moles from people’s skin.

    One of the most notable physical characteristics of dry ice is its ability to sublime. Sublimation is a phenomenon in which a substance transforms from a solid state directly into a gaseous state without becoming a liquid. In the case of dry ice, this occurs at the frigid temperature of -78.5°C. If carbon dioxide falls below this point, it transforms into dry ice. Conversely, when it is above this temperature, it transforms into CO2 gas. Due to its extremely low temperature, dry ice can be dangerous to handle and can cause severe skin burns if touched without proper protection.

>> 社群媒體用途多 你都用來做什麼? Exploring the Purpose of Social Media

    When dry ice is combined with water, it produces an interesting reaction. If you place it in a bucket of water, the carbon dioxide will react with the water and produce gas bubbles. As the gas bubbles reach the water’s surface, they create a thick fog because of the extremely cold temperature of the dry ice. The fog is much denser than the surrounding air, so it normally sinks to the ground, creating an eerie sensation. Therefore, dry ice is the perfect addition to any haunted house.

1. What happens in the process of sublimation?
(A) A gas becomes a solid.
(B) A solid becomes a liquid.
(C) A solid becomes a gas.
(D) A liquid becomes a gas.
2. Gina is working on a report about dry ice. Which of the following pieces of information is NOT correct?
(A) “Dry ice is the name for CO2 in its solid state.”
(B) “If not handled properly, dry ice can pose safety risks.”
(C) “Dry ice can be used in various ways, even in the medical field.”
(D) “When the temperature drops below -78.5°C, CO2 becomes gaseous.”
3. Why does dry ice form a dense fog when it is blended with water?
(A) The dry ice turns into a solid ice block.
(B) The dry ice causes the water to dissolve10, forming water vapor.
(C) The temperature of the water is far colder than that of the carbon dioxide.
(D) The combination creates cold CO2 bubbles that turn into fog on the water's surface.

 

 

答案: 1. C 2. D 3. D

單字片語整理

Words in Use
transform
[trænsˋfɔrm]
.vt. 變化,改變
versatile
[ˋvɝsət!]
a. . 多才多藝的
property
[ˋprɑpɚtɪ]
n. 財產(不可數);特性(可數)
produce
[ˋprɑdjus]
n. 農產品(不可數)
transit
[ˋtrænsɪt]
n. (貨物的)運輸
vt. 通過
characteristic
[͵kærəktəˋrɪstɪk]
a. 典型的(皆與介詞 of 並用)
n. 特徵
conversely
[kənˋvɝslɪ]
adv. 相反地
dense
[dɛns]
a. 稠密的
sensation
[sɛnˋseʃən]
n. 感覺, 知覺;轟動(的事情)
haunted
[ˋhɔntɪd]
adj. 鬧鬼的
dissolve
[dɪˋzɑlv]
vt. & vi. 溶解
flash-freeze
vt. 快速冷凍(食物)
mole
[mol]
n. 痣
gaseous
[ ˈgæʃəs / ˋgæsɪəs]
a. 氣態的
frigid
[ˋfrɪgɪd]
a. 寒冷的
vapor
[ˋvepɚ]
n. . 蒸氣
Practical Phrases
sth could not be further from the truth
 某事與事實完全相反;某事與實際狀況大相逕庭

It looked as if everything was fine with Scott's family on the surface, but this could not be further from the truth.
史考特的家庭表面上一切都很好,但實際狀況卻是大相逕庭

transform from A into B
 從 A 轉變成 B

The witch transformed from an old lady into a beautiful maiden.
那個女巫老太太變成了美麗的少女。

react with...
 與⋯⋯產生化學反應

Oxygen reacts with hydrogen to produce two compounds: water and hydrogen peroxide.
氧氣氫氣反應後會產生兩種化合物:水及過氧化氫。

carbon dioxide
 二氧化碳

Plants absorb carbon dioxide and produce oxygen.
植物吸收二氧化碳並且製造氧氣。

eerie  a. 怪異可怕的
An eerie silence rippled through the crowd as the announcement was made.
發布通知後,眾人陷入一片詭異的寂靜。


以下介紹其他表「怪異的,可怕的」的用法︰

a. creepy  a. 令人毛骨悚然的
The abandoned cabin was so creepy that no one dared to enter.
這間廢棄的小木屋令人感到毛骨悚然,因此沒人敢踏進一步。
b. spooky  a.(尤指因超自然現象而)令人毛骨悚然的
The empty mansion on the mountain top always gave me a spooky feeling.
山頂上那座空蕩蕩的豪宅總是讓我感到毛骨悚然。
c. scary  a. 可怕的
Hospitals are viewed as scary places in horror films.
醫院在恐怖電影中被視為恐怖的地方。
d. chilling  a. 令人害怕/毛骨悚然的
The chilling sound of footsteps echoed throughout the long hallway.
長長的走廊裡回蕩著令人毛骨悚然的腳步聲。
e. frightening   a. 嚇人的,可怕的
Though bungee-jumping is frightening, Nyla decided to take a chance and try it.
雖然高空彈跳很嚇人,但奈拉決定冒險試試看。

乾冰為什麼會產生煙霧?

    乾冰是一種用途廣泛的奇特物質。它可能看起來純粹像一塊白色冰塊,但事實卻相差甚遠。一般的冰是水(H2O)的固態,而乾冰則是二氧化碳(CO2)的固態。要將二氧化碳氣體凍結成固態,溫度必須極低。這種獨特的性質使乾冰成為速凍農產品、在運輸過程中保持食品低溫,甚至是去除人們皮膚上的痣等任務的理想選擇。

    乾冰最顯著的物理特性之一是其昇華能力。昇華是一種物質在不變成液態的情況下,從固態直接轉化為氣態的現象。就乾冰而言,這種現象發生在攝氏 -78.5 度的寒冷溫度下。如果二氧化碳的溫度低於此,它就會變成乾冰。相反地,當高於這個溫度時,二氧化碳就會轉化為二氧化碳氣體。由於溫度極低,乾冰的處理可能會非常危險,接觸乾冰時若沒有適當的保護措施,可能會導致皮膚有嚴重的冰灼傷。

    當乾冰與水結合時,會產生一種有趣的反應。如果把乾冰放在一桶水中,二氧化碳就會與水發生反應、產生氣泡。當氣泡到達水面時,由於乾冰的溫度極低,因此會產生濃
霧。這種霧的密度比周圍的空氣要大,所以通常會下沉到地面,產生一種陰森恐怖的感覺。因此,乾冰是任何鬼屋的完美附加元素。

1. 昇華過程中會發生什麼事?
(A) 氣體變成固體。
(B) 固體變成液體。
(C) 固體變成氣體。
(D) 液體變成氣體。
2. 吉娜正在撰寫一份關於乾冰的報告。以下哪項資訊是不正確的?
(A) 「乾冰是固態二氧化碳的名稱。」
(B) 「如果處理不當,乾冰會構成安全風險。」
(C) 「乾冰有多種用途,甚至可以用於醫療領域。」
(D) 「當溫度降至攝氏 -78.5 度以下時,二氧化碳會變成氣態。」
3. 為什麼乾冰與水混合後會形成濃霧?
(A) 乾冰會變成固體冰塊。
(B) 乾冰會使水溶解,形成水蒸氣。
(C) 水的溫度遠遠低於二氧化碳的溫度。
(D) 兩者結合產生的二氧化碳冷氣泡會在水面上變成霧。

 

回饋與建議

為了提供更好的閱讀體驗與學習感受,有任何建議或問題歡迎留言讓我們知道,感謝~
1000

學會了嗎?✋來答題得 熊贈點






作者

Niall Longobardi
輸入關鍵字,免費領取單字包!