Ideal Gas Law

Front

What is the Ideal Gas Law?

Back

The Ideal Gas Law is a fundamental equation in chemistry that relates the pressure (P), volume (V), number of moles (n), and temperature (T) of an ideal gas. It is expressed as PV = nRT, where R is the gas constant.

Front

What does the variable 'R' represent in the Ideal Gas Law?

Back

'R' represents the gas constant in the Ideal Gas Law, which is used to relate the pressure, volume, temperature, and number of moles of a gas.

Front

What is the value of the gas constant 'R' in L·kPa/(K·mol)?

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The value of the gas constant 'R' is 8.314 L·kPa/(K·mol).

Front

What is STP in terms of temperature and pressure?

Back

STP (Standard Temperature and Pressure) is defined as a temperature of 0 degrees Celsius (273.15 K) and a pressure of 1 atmosphere (atm).

Front

How does the number of moles affect the volume of a gas at constant temperature and pressure?

Back

At constant temperature and pressure, as the number of moles of gas increases, the volume also increases.

Front

What is the relationship between pressure and volume in a gas at constant temperature?

Back

According to Boyle's Law, at constant temperature, the pressure of a gas is inversely proportional to its volume (P1V1 = P2V2).

Front

How do you convert Celsius to Kelvin?

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To convert Celsius to Kelvin, add 273.15 to the Celsius temperature (K = °C + 273.15).

Front

What is the pressure of a gas at STP in kPa?

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At STP, the pressure of a gas is 101.3 kPa.

Front

If the volume of a gas is doubled while keeping temperature constant, what happens to the pressure?

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If the volume of a gas is doubled at constant temperature, the pressure is halved (Boyle's Law).

Front

What is the formula to calculate the number of moles of a gas using the Ideal Gas Law?

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The number of moles (n) can be calculated using the formula n = PV / RT.