This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

Sentence

熱は水を水蒸気に変える。

(ねつ)(みず)水蒸気(すいじょうき)()える。
Heat turns water into steam.
Sentence

雲は水蒸気のかたまりである。

(くも)水蒸気(すいじょうき)のかたまりである。
A cloud is a mass of vapor.
Sentence

水は沸騰すると水蒸気になる。

(みず)沸騰(ふっとう)すると水蒸気(すいじょうき)になる。
Water turns into steam when it is boiled.
Sentence

1モルの氷を水にするときと、1モルの水を水蒸気にするとき、より多くのエネルギーが必要なのは?

1モルの(こおり)(みず)にするときと、1モルの(みず)水蒸気(すいじょうき)にするとき、より(おお)くのエネルギーが必要(ひつよう)なのは?
When converting 1 mole of ice into water, and 1 mole of water into steam, which requires more energy?