Question

the water equivalent of asubstance is 20 g . if the mass of the substance is 200g the specific heat of the substance is​

Answer 1

Explanation:

Specific heat of water is 4.2 J/g.

Water equivalent is given as 20 g.

Mass of the substance is 200g.

Hence

Specific heat of substance × its mass =

Water equivalent × Specific heat of water =>

Specific heat of substance × 200=20×4.2 =>

Sepcific heat of substance = 84/200=

0.42 J/g or 420 joules per kg. Hope it helps you.