Question

1. Write the basic difference between a gas and vapours.
2. Write any two classes of thermal expansion with definition.
3. Change 32°F into : -
a) Celsius
b) Kelvin temperatures.​

Answer 1

Answer:

1.Vapour is a mixture of two or more different phases at room temperature, these phases are liquid and gaseous phase. Gas usually contains a single thermodynamic state at room temperature. ... Gases are usually formed above its critical temperature, but below critical pressure.

2.Thermal expansion describes the tendency of an object to change its dimension either in length, area or volume due to heat. Heating up a substance increases its kinetic energy. Depending on the type of expansion thermal expansion is of 3 types– Linear expansion, Area expansion, and Volume expansion. ... A0 = expanded area.

3.(a)32 degrees fahrenheit =

0 degrees celsius

(b)When it comes to converting Fahrenheit degrees into Kelvins, the formula is even simpler. Subtract 32, multiply by 5, divide by 9, then add 273.15. (°F − 32) × 5/9 + 273.15 = K.

Explanation:

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