chemistry

H. D. Gunawardhana

H. D. Gunawardhana 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 H. D. Gunawardhana rather than just read about it. In short: Hettipathirannehelage Dasarathasiri Gunawardhana is a Senior Professor of Chemistry at University of Colombo. Early life and education He received his primary education at Withanamulla Buddhist Mixed School Minuwangoda and entered Nalanda College Colombo for secondary education.

Key takeaways

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

Reference excerpt

Hettipathirannehelage Dasarathasiri Gunawardhana is a Senior Professor of Chemistry at University of Colombo.

Early life and education

He received his primary education at Withanamulla Buddhist Mixed School Minuwangoda and entered Nalanda College Colombo for secondary education. Later he graduated with a BSc (Special) Degree from University of Ceylon, Colombo and gained a PhD for Analytical Chemistry from University of Salford in United Kingdom.

Career Started his academic teaching career as a Temporary Assistant Lecturer at University of Ceylon, Colombo in 1970 and was appointed as a Professor of Chemistry (Inorganic / Analytical) in 1990. He is a Fellow of the Institute of Chemistry, Ceylon and Fellow of the National Academy of Sciences, Sri Lanka. He was also the Head of the Chemistry Department of University of Colombo from 1988 to 1995. He has also served as president of the Sri Lanka Association for the Advancement of Science in 2008.

References

General references "Lecture". Daily News. 10 March 2011. Archived from the original on 15 March 2011. Retrieved 23 April 2011. "Department of Chemistry". University of Colombo. September 2007. Archived from the original on 5 April 2011. Retrieved 23 April 2011.

Worked examples

Example 1 — a first encounter with H. D. Gunawardhana

Start with the simplest possible case. Write down what H. D. Gunawardhana 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 H. D. Gunawardhana 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 H. D. Gunawardhana 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 H. D. Gunawardhana

In research: H. D. Gunawardhana 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 H. D. Gunawardhana 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: H. D. Gunawardhana is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1945 births, Alumni of Nalanda College, Colombo, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for H. D. Gunawardhana 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 H. D. Gunawardhana in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what H. D. Gunawardhana 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 H. D. Gunawardhana out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is H. D. Gunawardhana in simple terms?

Hettipathirannehelage Dasarathasiri Gunawardhana is a Senior Professor of Chemistry at University of Colombo. Early life and education He received his primary education at Withanamulla Buddhist Mixed School Minuwangoda and entered Nalanda College Colombo for secondary education.

Why does H. D. Gunawardhana 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 H. D. Gunawardhana?

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 H. D. Gunawardhana.