change 40 degree celsius to the corresponding temperature on kelvin scale and 300 K to celsius scale .
Kindly refer the link for similar query.
https://www.meritnation.com/ask-answer/question/what-temperature-change-on-kelvin-scale-is-equivalent-to-10/chemistry/4362797
https://www.meritnation.com/ask-answer/question/what-temperature-change-on-kelvin-scale-is-equivalent-to-10/chemistry/4362797