Unit 10: Gas Laws Summative Review

Front

What is Boyle's Law?

Back

Boyle's Law states that the pressure of a gas is inversely proportional to its volume when the temperature is held constant. Mathematically, it is expressed as P1V1 = P2V2.

Front

What is Charles's Law?

Back

Charles's Law states that the volume of a gas is directly proportional to its temperature (in Kelvin) when the pressure is held constant. It can be expressed as V1/T1 = V2/T2.

Front

What is the Ideal Gas Law?

Back

The Ideal Gas Law combines Boyle's, Charles's, and Avogadro's laws into one equation: PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature in Kelvin.

Front

What conditions make a gas behave ideally?

Back

A gas behaves ideally at high temperatures and low pressures, where intermolecular forces are negligible.

Front

What is STP (Standard Temperature and Pressure)?

Back

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

Front

How do you convert Celsius to Kelvin?

Back

To convert Celsius to Kelvin, add 273.15 to the Celsius temperature. For example, 48°C = 48 + 273.15 = 321.15 K.

Front

What is Avogadro's Law?

Back

Avogadro's Law states that equal volumes of gases, at the same temperature and pressure, contain an equal number of molecules. It can be expressed as V1/n1 = V2/n2.

Front

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

Back

The relationship is inversely proportional; as the volume decreases, the pressure increases, and vice versa, assuming temperature is constant.

Front

What is the formula to calculate the volume of a gas at STP?

Back

At STP, 1 mole of an ideal gas occupies 22.4 liters. Therefore, the volume can be calculated using the formula: Volume = moles × 22.4 L.

Front

What happens to gas pressure when temperature increases?

Back

According to Gay-Lussac's Law, if the volume is constant, the pressure of a gas increases as the temperature increases.