Well, if u are observant enough, you will see that the students recorded the final temp and initial temp wrongly in place.. i think that is the error.. whereby the initial temp should be the final temp coz it's an endothermic reaction. however, the student recorded the final temp higher than initial temp...
anyway, sighh, i didn't put a POSITIVE sign for my enthalpy change..... arhhhhhh.. how can i make such a silly mistake????? I just put the value down without indicating the sign..
anyway, sighh, i didn't put a POSITIVE sign for my enthalpy change..... arhhhhhh.. how can i make such a silly mistake????? I just put the value down without indicating the sign..