Answer:
The two objects have different volumes.
Step-by-step explanation:
The density of an object measures how closely packed the mass in the object is. Density of an object is obtained by taking the ratio of the mass of an object and its volume.
Density = mass/volume
The mass present in an object is constant, but the volume may vary with temperature. The volume of substances generally increases with temperature, therefore, density decreases with increase in volume.
Two objects at the same temperature having equal masses may or may not have the same density depending on the volume each object occupy.
If two substances are at the same temperature and have equal masses but different densities, then they must have different volumes.