Chemistry Unit 5 Review

Front

What is the formula to calculate the volume of a gas when pressure changes?

Back

Using Boyle's Law: P1V1 = P2V2, where P is pressure and V is volume.

Front

What is the relationship between pressure and volume in Boyle's Law?

Back

Inverse relationship: as pressure increases, volume decreases, and vice versa.

Front

What is STP in terms of gas measurements?

Back

Standard Temperature and Pressure: 0°C (273.15 K) and 1 atm (101.3 kPa).

Front

How many liters are in 1 mole of an ideal gas at STP?

Back

22.4 liters.

Front

What is the definition of gas pressure?

Back

Gas pressure is caused by gas molecules colliding with surfaces.

Front

How do you convert Celsius to Kelvin?

Back

K = C + 273.

Front

What is the ideal gas law equation?

Back

PV = nRT, where P is pressure, V is volume, n is number of moles, R is the gas constant, and T is temperature in Kelvin.

Front

How many particles are in one mole of a substance?

Back

6.022 x 10^23 particles (Avogadro's number).

Front

What is the volume of a gas if its pressure changes from 740 mmHg to 3300 mmHg and the initial volume is 11.1 L?

Back

2.49 L.

Front

What happens to the volume of a gas if the temperature increases while pressure is constant?

Back

The volume increases (Charles's Law).