The graph shows the temperature versus time relationship for 2kg of particular substance. The substance is in the solid state at a temperature of 20 degrees Celsius

Question

b) If 200 joules of heat is added during the time interval B(20 degrees Celsius) to C(80 degrees Celsius), what is the specific heat of the substance

Answer 1

heat=m*c*dT
c= 200j/*2kg60C)= 200/(120) J/gC

Answer 2

ooops, J/KgC

Answer 3

Is the answer 1.67