Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
열역학은 에너지와 열의 관계를 연구하는 학문입니다.yeollyeokhageun eoneojiwa yeolui gwangyereul yeonguhaneun hakmunimnida.Thermodynamics is the study of the relationship between energy and heat.