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lana66690 [7]
2 years ago
10

Heat energy that is lost cannot usually be used to produce work. True False

Chemistry
1 answer:
Veseljchak [2.6K]2 years ago
7 0

Answer:

true

Explanation:

thanks for free point

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5. What are the relative rates of diffusion for methane, CH, and oxygen, O2? If O2 la travels 1.00 m in a certain amount of time
11Alexandr11 [23.1K]

Answer:

The relative rates of diffusion for methane and oxygen is 1.4142.

Methane gas will be able to travel 1.4142 meter in the same conditions.

Explanation:

To calculate the rate of diffusion of gas, we use Graham's Law.

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. Mathematically written as:

\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}

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Molar mass of methane gas, m = 16 g/mol

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\frac{d_{CH_4}}{d_{O_2}}=\sqrt{\frac{m'}{m}}

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The relative rates of diffusion for methane and oxygen is 1.4142.

If oxygen gas travels 1 meters in time t.

Rate of diffusion of oxygen =d_{O_2}=\frac{1 m}{t}

If methane gas travels travels in y meters in time t.

Rate of diffusion of methane=d_{CH_4}=\frac{y }{t}

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Answer:

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