The aim of the study was to determine whether education of thermodynamics course of chemical engineering with foreign language was a problem in SuleymanDemirel University, and if it was, collaborative working could be a solution of the problem Totally forty-two students participated in a course either in English or in Turkish. At the end, both of them divided into two parts for collaborative or individual Workintz. Course and assessments showed that taking this course in English was problematic since students do not feel themselves relax, thus decreasing the success of the class nearly 12%. The successes of collaborative worked-assessments of both classes were the same proving that decrease observed in English section can be suppressed by collaborative working. (C) 2013 The Authors, Published by Elsevier Ltd. Open access under CC BY-NC-ND license.