1. Test Your Knowledge: Laws and Their Names
By: Tyler Messenger

2. Name the Law
You will be shown an equation, and must name the law that explains it

3. Name the Law
PV = nRT Ideal Gas Equation, with P = pressure (atm), V= volume (Liters), n = moles of gas, T = temperature (K), and R = L-atm/mol-K

4. Name the Law
PA = XA * P⁰A Raoult’s Law, where PA = Partial Pressure exerted by vapor of a solution, XA = mole fraction of the solvent, P⁰A = vapor pressure of the pure solution

5. Name the Law
P₁V₁/T₁ = P₂V₂/T₂ Combined Gas Law

6. Name the Law
P₁V₁ = P₂V₂ Boyle’s Law

7. Name the Law
PTotal = ∑PPartial Dalton’s law of Partial Pressure, where the sums of Partial Pressure in a gas are equal to the total Pressure on the Gas

8. Name the Equation
Name the Equation based off of the name of the Law

9. Name the Equation What is the equation for Charles’s Law?
V₁/T₁ = V₂/T₂

10. Name the Equation
Avogadro's Law V₁ / n₁= V₂ / n₂, where V is the volume, and n is the amount of gas in moles

11. Name the Equation
Hess’s Law ∆H⁰Reaction= ΣΔHf(Products) - ΣΔHf(Reactants) which means that the total change in enthalpy is equal to the difference of the Heat of Formation of the Products and the Heat of Formation for the Reactants

12. Application of a Law
How does the temperature of a gas change as its pressure is lowered? Gay-Lussac’s Law states that temperature and pressure are directly proportional, making temperature decrease as pressure decreases.