What of the following is an advantage of the thermal properties of plastic?
The thermal conductivity of plastic is very high, making it a good material to transmit heat.
Plastics are easy to mold into any shape.
Plastics are safe to use in microwave ovens.
Heating plastics eliminates the risk of BPA exposure.
Plastics are safe to use in microwave ovens.
As the pressure of a gas decreases to half its original value, what happens to the volume of the gas if temperature is held constant?(1 point)
The volume decreases to one-fourth of its original value.
The volume increases to four times its original value.
The volume decreases to half of its original value.
The volume increases to twice its original value.
The volume increases to twice its original value.
The correct advantage of the thermal properties of plastic is:
Plastics are easy to mold into any shape.
Plastic materials have the advantage of being easily molded into various shapes and forms. This makes them highly versatile for use in different applications and industries. Plastic's ability to be molded into custom shapes makes it an ideal material for a range of products, including containers, toys, automotive parts, and more.
The correct answer is "Plastics are safe to use in microwave ovens." This is because plastic has low thermal conductivity, which means it does not easily transfer heat. As a result, it is resistant to melting or warping when exposed to high temperatures in microwave ovens.
To find the answer, you can eliminate the other options by understanding their implications:
1. "The thermal conductivity of plastic is very high, making it a good material to transmit heat." This statement is incorrect because plastic actually has low thermal conductivity, which means it is not a good material for transmitting heat.
2. "Plastics are easy to mold into any shape." While this is true and is indeed an advantage of plastic, it does not specifically relate to its thermal properties.
3. "Heating plastics eliminates the risk of BPA exposure." This statement is incorrect because heating plastics can actually increase the risk of BPA (Bisphenol A) exposure. BPA is a chemical often found in certain plastics that can leach out when heated and potentially be harmful to health.
Therefore, the only remaining and correct option is "Plastics are safe to use in microwave ovens," as plastic is generally considered safe for use in microwave ovens due to its low thermal conductivity.