Chapter U5, Problem C18.2RE

Interpretation Introduction

Interpretation: The reason why it is possible to touch a piece of aluminum foil shortly after it has been removed from a hot oven, but a pieces of cheese pizza can burn us long after it has been removed needs to be described. 

Concept introduction: Thermodynamics is the analysis of heat transfer. Heat transfer direction is always from a hotter substance to colder one.

Answer to Problem C18.2RE

Specific heat of alumina is very less to compare to cheese.

Explanation of Solution

Compare to cheese specific heat of alumina is very less. At the same temperature when alumina and cheese are heated, alumina cools faster than cheese and it comes in an equilibrium state with the surrounding. In case of cheese it takes more time to cool thus it feel heat after a long time.

Conclusion

Specific heat capacity required to raise temperature of 1 g of a substance by $\text{1}°\text{C}$ is termed as specific heat capacity.