Question

The amount of heat required to melt 2 lbs of ice is twice the amount of heat required to melt 1 lb of ice. Is this observation a macroscopic or microscopic description of chemical behavior?

a) Macroscopic; it describes observable properties
b) Microscopic; it involves molecular-level interactions
c) Both macroscopic and microscopic aspects
d) Neither macroscopic nor microscopic

Answer 1

The observation that the amount of heat required to melt 2 lbs of ice is twice the amount required to melt 1 lb of ice is a macroscopic description of chemical behavior. The correct option is a).

Step-by-step explanation:

The observation that the amount of heat required to melt 2 lbs of ice is twice the amount required to melt 1 lb of ice is a macroscopic description of chemical behavior.

Macroscopic descriptions refer to observable properties that can be measured or observed without needing to consider the underlying molecular interactions.

In this case, the observation is based on the measurement of heat, which can be determined at the macroscopic level without needing to understand the molecular-level interactions between the ice molecules. Option a) is the correct one.