when we heat metal its density decreases why?
Answers
Answer:
When a metal is heated, its density decreases. There are two sources that give rise to this decrease of ρ: (1) the thermal expansion of the solid and (2) the formation of vacancies (Section 4.2). Consider a specimen of gold at room temperature (20°C) that has a density of 19.320 g/cm3.
Answer:
when we heat a metal or a substance the particles constituting the metal or the substance starts moving vigorously and as a result the particles move further apart and the volume increases
volume and density are inversely proportional which means that if volume is increased density decreases and its volume is decreased density increases as a result of this the volume of the metal decreases
Explanation:
conversely if a metal is cooled its volume decreases and as a result is density increases because the particles come close together and get packed