Chapter 5, Problem 90A

Interpretation Introduction

Interpretation : A cooked hamburger will weigh less than the uncooked meat patty is to be explained.

Concept Introduction : According to the rule of conservation of mass, mass is conserved during all physical and chemical processes. There is no formation or destruction of mass.

Answer to Problem 90A

A cooker hamburger will weigh less than the uncooked meat patty due to loss of water.

Explanation of Solution

The makeup of matter always changes when a chemical reaction takes place.

The mass of the reactants and products are always equal during any chemical reaction.

In the law of conservation of mass, there is no mass lost or gained during the chemical or physical change.

Hamburgers are undergone chemical changes during cooking.

A cooked Hamburger is less weight when compared to an uncooked meat patty.

The reason is due to the loss of water content in cooked hamburgers. The uncooked meat patty contains water in it but during cooking, the water is lost.