question_answer

Which of the substances A, B or C has the highest specific heat ? The temperature vs time graph is shown

A)            A    

B)            B

C)            C    

D)            All have equal specific heat

Correct Answer: C

Solution :

                   Substances having more specific heat take longer time to get heated to a higher temperature and longer time to get cooled. If we draw a line parallel to the time axis then it cuts the given graphs at three different points. Corresponding points on the times axis shows that  \[{{t}_{C}}>{{t}_{B}}>{{t}_{A}}\] Þ \[{{C}_{C}}>{{C}_{B}}>{{C}_{A}}\]