Avogadros Law (Edexcel GCSE Chemistry): Quizzes

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Avogadros Law
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In Avogadro's Law, which two conditions must be kept constant?

Temperature and pressure

What do equal volumes of different gases contain at the same temperature and pressure?

Same number of particles

What is the mathematical expression for Avogadro's Law?

VnV \propto n

What happens to gas volume if you increase the moles at constant temperature and pressure?

Volume increases

If you double the moles of gas, what happens to the volume at constant temperature and pressure?

Volume doubles

What is the mathematical formula for Avogadro's Law?

V1n1=V2n2\frac{V_1}{n_1} = \frac{V_2}{n_2}

In the formula V1n1=V2n2\frac{V_1}{n_1} = \frac{V_2}{n_2}, what does nn represent?

Number of moles

What is the temperature at standard temperature and pressure (STP)?

0°C (273 K)

What is the pressure at standard temperature and pressure (STP)?

1 atmosphere

What volume does 1 mole of any gas occupy at STP?

22.4 dm³

What volume would 2 moles of oxygen gas occupy at STP?

44.8 dm³

What is Avogadro's Law particularly useful for?

Calculating gas volumes in reactions

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