chemistry

Paul Lebeau

Paul Lebeau is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Paul Lebeau rather than just read about it. In short: Paul Marie Alfred Lebeau (19 December 1868 – 18 November 1959) was a French chemist. He studied at the elite École supérieure de physique et de chimie industrielles de la ville de Paris (ESPCI).

Key takeaways

Paul Lebeau belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Paul Lebeau to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Paul Lebeau from memory before moving on to harder problems.

Reference excerpt

Paul Marie Alfred Lebeau (19 December 1868 – 18 November 1959) was a French chemist. He studied at the elite École supérieure de physique et de chimie industrielles de la ville de Paris (ESPCI). Together with his doctoral advisor Henri Moissan he was working on fluorine chemistry discovering several new compounds, like bromine trifluoride, oxygen difluoride, selenium tetrafluoride and sulfur hexafluoride. In 1899, he was able to obtain pure beryllium by electrolysis sodium fluoroberyllate (Na2[BeF2]). In World War I, he improved the gas mask design used by the French army.

Biography An engineer (class of 1888) from the École supérieure de physique et de chimie industrielles de la ville de Paris (now ESPCI ParisTech), Paul Lebeau worked in Alexandre Étard laboratory, where he studied the analysis of copper and free halogens. He joined Henri Moissan’s laboratory in 1889 and later became head of his laboratory at the Sorbonne. In 1908, Paul Lebeau was appointed to the chair of toxicology at the École supérieure de pharmacie de Paris. In this capacity, he contributed to the development of protective measures against German combat gases during World War I by improving the effectiveness of gas masks . After the war, he was appointed advisor to the Ministry of National Defense and continued his research on protection. In 1918, he succeeded Charles Moureu, who had been appointed professor at the Collège de France, to the chair of chemical pharmacy at the School of Pharmacy. He held this position until his retirement in 1939. He is buried at Père Lachaise Cemetery (44th section).

References

Bibliography "Paul Lebeau".

Worked examples

Example 1 — a first encounter with Paul Lebeau

Start with the simplest possible case. Write down what Paul Lebeau claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Paul Lebeau before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Paul Lebeau ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Paul Lebeau

In research: Paul Lebeau appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Paul Lebeau in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Paul Lebeau is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1868 births, 1959 deaths, 20th-century French chemists, so understanding it makes those chapters shorter.
In everyday life: Look for Paul Lebeau outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Paul Lebeau in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Paul Lebeau means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Paul Lebeau out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Paul Lebeau in simple terms?

Paul Marie Alfred Lebeau (19 December 1868 – 18 November 1959) was a French chemist. He studied at the elite École supérieure de physique et de chimie industrielles de la ville de Paris (ESPCI).

Why does Paul Lebeau matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Paul Lebeau?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Paul Lebeau.