Question 822: Thermodynamics & KTG

Question

The pressure exerted by an ideal gas at a particular temperature is directly proportional to

Accepted Answer

The side length of a copper cube is $1 \, 	ext{m}$ at $0^{\circ} 	ext{C}$. We need to determine the change in its volume when it is heated to $100^{\circ} 	ext{C}$. Given the coefficient of linear expansion for copper $\left(\alpha_{	ext{copper}}ight)=18 	imes 10^{-6} /{}^{\circ} 	ext{C}$, we use the volumetric expansion formula for a cube:
$ \Delta V = V \cdot 3\alpha \cdot \Delta T $
Insert the given values:
$ \Delta V = 3 	imes 18 	imes 10^{-6} 	imes 100 $
This simplifies to:
$ \Delta V = 54 	imes 10^{-4} \, 	ext{m}^3 $

Answer

the mean speed of the gas molecules.

Answer

mean of the square of the speed of the gas molecules.

Answer

the square of the mean speed of the gas molecules.

Answer

the root mean square speed of the gas molecules.

Thermodynamics & KTG

The pressure exerted by an ideal gas at a particular temperature is directly proportional to

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