Haber process

Haber process

noun
a process for synthesizing ammonia from gaseous nitrogen and hydrogen under high pressure and temperature in the presence of a catalyst.

Origin:
named after Fritz Haber

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Haber process (ˈhɑːbə) [Click for IPA pronunciation guide]
 
n
an industrial process for producing ammonia by reacting atmospheric nitrogen with hydrogen at about 200 atmospheres (2 × 107 pascals) and 500°C in the presence of a catalyst, usually iron
 
[named after Fritz Haber (1868--1934), German chemist]

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Haber_process is always a great word to know.
So is quincunx. Does it mean:
a chattering or flighty, light-headed person.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
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