The correct spelling of the word "karno" would actually be "Carnot". The IPA phonetic transcription of "Carnot" is /kɑrˈnoʊ/, with stress on the second syllable. The "C" is pronounced like a "K" sound, followed by "a-r-n-o-t" pronounced as one syllable. This French surname is named after the physicist Nicolas Léonard Sadi Carnot, known for his contributions to thermodynamics. Accurate spelling is crucial in communicating effectively, both in speech and in writing.