Why Should You Never Weigh a Hot Object

View the full answer. Why should you never weigh a hot object on an analytical balance in lab.

The Thermometer

3 Do not weigh hot or cold objects on the balance.

. Handling hot objects just isnt as safe as handling. Weighing an object three times gave the following results. Chemistry questions and answers.

If you have absolutely identical objects that have the same weight exactly when they are at same temperature then when one object is heated it will weigh more. Why should you never weigh objects while still hot. If you spill chemicals on the top loading balance clean it immediately.

Why should you never weigh a hot object. Its true that as the hot object youre trying to weigh warms the air around it the air will rise creating air currents that will give you an unsteady reading. Description of Container A.

If you have absolutely identical objects that have the same weight exactly when they are at the same temperature then when one object is heated it will weigh more. This current can cause instabilities in measurements especially when using sensitive digital scales. A warm or hot object will create a convection current in the air around the balance pan.

The reason why hot objects are heavier is because Emc2. November 7 2021 April 5 2022 thanh. Mass readout will be unstable as some gases may be evolved later which may decrease.

The other two answers here are fine. Get 1-on-1 help from an expert tutor now. Can it be determined from a single measurement.

One should never weigh hot object on analytical balance in lab. One is that hot air is less dense than cold air and can produce a buoyancy that tends to lift the object up and reduce its weight. I am doing a chemistry lab and this was one of the question on my reviewand it says it in the packet that you should never weigh a hot object but it doesnt tell why.

In addition the hot object may cause damage to the delicate balance and so should be allowed to cool to room temperature before it is weighed. A hot object creates a buoyancy effect by radiating energy in the form of heat and will appear to have a reduced mass. The air around the object pushes up and causes the gram readout on the balance to fluctuate why is it necessary to calibrate a thermometer and volumetric glassware.

Hot objects will give erroneously lower readings due to air buoyancy while cold objects will give higher readings due to the condensation of water vapor. This creates convection currents that cause the mass displayed to be unreliable. Hot objects can be dangerous to touch c.

Why should you never weight a hot object. Why you should never weigh a hot object. This is because the gravitational force depends on the stre.

The balance pan will heat up too causing metal parts in the balance to expand. Why should you never weigh a hot object. Answer 1 of 10.

If you weigh a hot object on the balance the reading will be higher the same or lower than if it had been weighed after it cools to room temperature. The balance will explode b. For any real object on the earth the difference would not be easily measurable if at all.

Wait for the sample to cool to room temperature before weighing it. Heat is a measure of the kinetic energy of the atoms or molecules. If an object is heated the energy is higher so the object will weigh slightly more.

4 Never spill chemicals inside the analytical balance enclosure. Air rises when warmed by a hot sample. First reason is safety of course.

First of all because of safety. This fluctuating force reduces the air pressure on the. You want to heat something enough to remove.

There is no drawback to weighing hot objects When measuring the volume of an irregularly shaped solid. This is because the gravitational force depends on the stress energy tensor in general relativity. The mass readout will be unstable O d.

Why should you never determine the mass of a hot object. Heat could damage the internal components of the scale and would not be weighed properly Why is it necessary to calibrate instruments such as thermometers and volumetric glassware before use. Why should you never weigh a hot object.

Id like to add three things they didnt mention. 100 1 rating objects should also not be weighed hot because hot objects emit convect. Yes though not by much.

Results and Observations A. See full answer below. Previous question Next question.

Mark all that apply Select one or more. Why should liquids never be poured on or near the balance. This is the best answer based on feedback and ratings.

Determining the mass of the solid object Description of the object. What is the density of an object with a mass of 903 g and a volume of 01987 mL. Theres two reasons why you have to wait for a constant temperature to weigh something.

Also if you are heating something to dry it out water molecules will be released from the sample changing the weight. Second reason the hot object radiates heat in the form of convection current which will heat the air around it.

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