Question

Same amount of heat is added to two substances of same mass having specific heat capacities s1 & s2 such that s1 > s2. Select the correct statement.

(a) The change in temperature of 1 is greater than the change in temperature of 2

(b) The change in temperature of 1 is less than the change in temperature of 2

(c) Both will have the same change in temperature

(d) Temperature changes can’t be related with specific heat capacities

I have been asked this question by my college professor while I was bunking the class.

My doubt is from Thermal Properties of Matter in portion Thermal Properties of Matter of Physics – Class 11

Answer 1

Right answer is (b) The change in temperature of 1 is less than the change in temperature of 2

Explanation: Q = msΔT,                                                                                                      so for the same mass and heat supplied, the product of ‘s’ and ΔT must be the same.                                    Therefore more the value of ‘s’, less will be the value of ΔT.                                                       Hence, ΔT will be lesser for 1 as ‘s’ is greater for 1 than 2.