Please solve question no 31
Dear Student
The substance melts by absorbing 340 - 40 = 300 J of energy (from the graph)
i.e 20 g of substance absorbs 300 J of energy and melts.
So energy required to melt 1 g of substance = = 15 J
So option B is correct.
Regards
The substance melts by absorbing 340 - 40 = 300 J of energy (from the graph)
i.e 20 g of substance absorbs 300 J of energy and melts.
So energy required to melt 1 g of substance = = 15 J
So option B is correct.
Regards