Why never weigh a hot object?

Answer 1

It is first not safe to handle hot objects. Acknowledging this, objects should also not be weighed hot because hot objects emit convection currents that will affect readings on precision balances quite noticeably. It is a misconception that heat will actually affect mass. Mass is conserved, except in nuclear reactions. The mass of an ice cube will be the same as the water that is formed from melting that ice cube (assuming that there is no evaporation). What changes in this case is the density.

Answer 2

One of the main reasons- as a hot object cools in air it collects water from the air thus increasing the mass (condensation). Generally a hot object should be cooled in a dessicator prior to massing.

Answer 3

Weighing a hot object can give inaccurate results because heat causes thermal expansion, leading to a change in the object's mass. This can affect the precision of the measurement and yield incorrect values. It is best to allow the object to cool to room temperature before weighing it to obtain accurate results.

Answer 4

When you weigh hot objects, you create drafts that affect the scales. As a result, you do not have an accurate weight.

Answer 5

Never gives you an accurate weight reading AND it may ruin your analytical high precision balance.

Answer 6

Because the mass will be different when the object is at room temperature.

Answer 7

how I would know if i didn't work it yet