Chemical Physics MChemPhys personal statement example

Why do you want to study this course or subject?

On a frosty morning last year I clicked the little metal disc in a reusable hand warmer and watched white crystals spread through the liquid in a few seconds. The pouch grew warm almost at once, and I realised I did not understand why the liquid had been sitting there, well below its melting point, without freezing. That question about supercooling became my Extended Project, and it showed me what I enjoy most: problems where a chemical change only makes sense once you think about energy, probability and particles physically rearranging themselves. In chemistry lessons I learnt that crystallisation releases enthalpy. In physics I learnt about energy barriers and thermal motion. The hand warmer needed both at the same time, and I want a degree where that overlap is the main subject rather than something I piece together between lessons. Chemical Physics appeals to me because it treats molecules with the mathematical tools of physics while still caring about real substances. I am particularly curious about how spectroscopy and quantum ideas explain why materials behave as they do, and I would like the extended integrated course so I can take those ideas further through a substantial research project.

How have your qualifications and studies helped you to prepare?

I am studying Chemistry, Physics, Maths and Further Maths. For my EPQ I compared how much heat commercial and home-made sodium acetate hand warmers released, using a school data logger and a polystyrene calorimeter. My solutions held a temperature plateau a few degrees below the expected melting point of about 58 °C, and I spent time working out how heat loss to the surroundings affected my readings. In Further Maths we had just met first-order differential equations, so I fitted a Newton's law of cooling model to the falling part of each curve. It was the first time a piece of maths I had learnt in class corrected a result I actually cared about. Reading around the topic led me to nucleation and the idea that a crystal must reach a critical size before growing becomes favourable, which made sense of why the metal disc mattered. I also enjoyed Richard Feynman's QED, where he explains how light interacts with electrons by adding arrows that represent probability amplitudes. It changed how I saw the photoelectric effect and the energy levels we study in Physics. Peter Atkins' The Periodic Kingdom helped me see trends in the table as consequences of electronic structure rather than facts to memorise. Last year I achieved a bronze certificate in the UK Chemistry Olympiad, which pushed me to practise longer, less familiar questions.

What else have you done to prepare outside of education, and why are these experiences useful?

Since Year 12 I have worked Saturdays as a barista in a busy café. The job has taught me to stay accurate under pressure, keep a queue moving and talk to people who are tired or in a hurry. I have also started to notice the physical science behind it: why milk heated too far stops forming a stable foam, and how grind size changes extraction time. A regular once asked why her oat milk behaved differently from dairy, and explaining the role of proteins and fats in plain words, without pretending to know more than I did, was surprisingly satisfying. I have climbed at a local bouldering club for three years, and for the past year I have helped at its Wednesday junior session, setting out mats, timing games and encouraging nervous beginners to try routes slightly beyond what they think they can manage. Climbing has made me patient with problems I cannot solve on the first attempt, and I have learnt that watching how someone else moves often helps more than trying the same thing harder. At home I look after my younger brother two evenings a week while my parents work late, which means fitting my own study around his homework and dinner. Balancing these commitments has made me organised and realistic about my time. I am ready for a demanding course that combines laboratory work with serious mathematics, and I would bring steady effort and genuine curiosity to it.