Boyle's Law
What happens to pressure when volume decreases in a gas?
Pressure increases.
What happens to gas volume when temperature increases?
Volume increases.
Which type of reaction releases heat?
Exothermic
What happens to equilibrium when more reactant is added?
it shifts to the right
What does pH measure?
The concentration of hydrogen ions (H⁺).
What is the formula for Boyle’s Law?
P₁V₁ = P₂V₂
What temperature scale must be used in Charles’ Law?
Kelvin
Which type of reaction absorbs heat?
Endothermic
What happens if a product is removed from equilibrium?
The reaction shifts right to make more product.
What pH value is considered neutral?
7
A gas has a volume of 4.0 L at 2.0 atm. What is the new volume if the pressure becomes 4.0 atm?
2.0 L
What is the formula for Charles’ Law?
V₁/T₁ = V₂/T₂
Is melting ice endothermic or exothermic?
Endothermic
What does Le Châtelier’s Principle state?
A system at equilibrium will shift to reduce stress placed on it.
Is a substance with pH 3 acidic or basic?
acidic
Why are pressure and volume inversely related in Boyle’s Law?
When volume decreases, gas particles hit the container walls more often, increasing pressure.
A gas has a volume of 2.0 L at 300 K. What is the new volume at 600 K?
4.0 L
In an exothermic reaction, does the surrounding temperature increase or decrease?
Increase
If heat is added to an endothermic reaction, which direction does equilibrium shift?
to the right
What is the formula relating pH and pOH?
A gas occupies 12 L at 1.5 atm. If the volume changes to 3 L, what is the new pressure?
6 atm
Why does gas volume increase when temperature increases?
Gas particles move faster and spread farther apart.
Explain the difference between exothermic and endothermic reactions.
Exothermic reactions release energy, while endothermic reactions absorb energy.
Why does increasing concentration affect equilibrium?
The system shifts to balance the added or removed substance.
A solution has a pH of 11. Is it acidic or basic?
Basic