Question

“c” the specific heat capacity of a substance is given by temperature difference is given by ΔT and the heat energy is given by Q then what is the mass of the substance?

(a) Q/cΔT

(b) cΔT /Q

(c) QcΔT

(d) QΔT

This question was addressed to me in class test.

Origin of the question is Thermodynamics topic in section Thermodynamics of Chemistry – Class 11

Answer 1

Right option is (a) Q/cΔT

For explanation I would say: Heat energy of a substance is denoted by Q and is given by the expression mcΔT, where m is a mass of the substance, c is a specific heat capacity and ΔT is temperature difference, so the mass of the substance is Q/cΔT.