Question 14.
Solve the following problems:
Equal heat is given to two objects A and B of mass 1 g. Temperature of A increases by 3oC and B by 5oC. Which object has more specific heat? And by what factor?
Answer:
Specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.
It is given by the formula:
Q = mcΔT
Or 
Where, Q is the amount of heat added.
T is the temperature.
“c” is the specific heat
“m” is the mass
Now, let say, two objects A and B.
Then, the ratio of the specific heats of two objects is given as:
As per the question, equal heat is given to two objects A and B of mass 1 g
Or
Clearly, it shows that the specific heat of A is greater than B with a factor 1.66.
