In method of mixtures, why is it essential that density of solid sampl

1.	In method of mixtures, why is it essential that density of solid sample be greater than the liquid in calorimeter?
Answer» 1. In method of mixtures, solid sample gives away heat to liquid, and heat exchange between, solid, liquid and calorimeter is considered as isolated. 2. If density of solid sample is lesser than liquid in calorimeter, sample will float on liquid. 3. This will cause partial heat loss to air inside the calorimeter and standard heat equations of calorimeter will no longer be applicable. Hence, in method of mixtures it is essential that density of solid sample be greater than liquid in calorimeter.

In method of mixtures, why is it essential that density of solid sample be greater than the liquid in calorimeter?

Answer»

1. In method of mixtures, solid sample gives away heat to liquid, and heat exchange between, solid, liquid and calorimeter is considered as isolated.

2. If density of solid sample is lesser than liquid in calorimeter, sample will float on liquid.

3. This will cause partial heat loss to air inside the calorimeter and standard heat equations of calorimeter will no longer be applicable.

Hence, in method of mixtures it is essential that density of solid sample be greater than liquid in calorimeter.