Question

The temperature of a piece of metal is -13°C . On heating . the temperature of the metal rises to 63°C . (a). what is the change in temperature of the metal piece ?​

Answer 1

Answer:

63-(-13)=63+13=76

Step-by-step explanation:

This question is simple . as the initial temp is in -ve . it first has to get at least 0℃ . therefore the change in temp from -13℃to 0℃ becomes 13℃ then again from 0℃To 63℃ we have the change of 63 .add the two and we get 76 as the total change of temp.