The physical quantity that provides a measure of molecular activity and the internal energy of an object is
A) density.
B) temperature.
C) viscosity.
D) specific weight.

Question

Quizplus · Accepted Answer

The physical quantity that provides a measure of molecular activity and the internal energy of an object is temperature. Density (A) is a measure of mass per unit volume, viscosity (C) is a measure of a fluid's resistance to flow, and specific weight (D) is the weight per unit volume of a substance. None of these directly measure molecular activity or internal energy.

The Physical Quantity That Provides a Measure of Molecular Activity