U2 - How do chemical reactions shape the natural world?

AOS 1 - How do chemicals react with water?

Boiling point

temperature at which a liquid transitions into a gas

Condensation

phase change from gas to liquid

Evaporation

alternative term for vaporisation

Group 16 hydride

group 16 element covalently bonded to hydrogen

Heat capacity

relationship between the heat absorbed by a substance and its
temperature change

Latent heat of vaporisation

amount of energy required to convert 1 mol of a substance
from its liquid state to its gaseous state at the boiling point of the substance

Phase change

transition of a substance from one state to another

Potable

alternative term for drinkable

Solar energy energy

produced by the sun

Specific heat capacity

energy (J) required to raise the temperature of 1 gram of a given
substance by 1°C

Vaporisation

phase change from liquid to gas

Formula or the specific heat capacity

q = m x c x ΔT

What does the ‘q’ stand for in q=mcΔT?

Energy in joules (J)

What does the ‘m’ stand for in q=mcΔT?

Mass in g or kg depending on specific heat capacity

What does the ‘c’ stand for in q=mcΔT?

Specific heat capacity (Jg^-1c^-1)

What does the ‘ΔT’ stand for in q=mcΔT?

Change in temperature

What is the formula for calculating latent heat?

q = n x L

What does the ‘q’ stand for in q = n x L?

Heat in kJ

What does the ‘n’ stand for in q = n x L?

n.o of mole (mol)

What does the ‘L’ stand for in q = n x L?

Latent value of fusion or vaporisation (KJ/mol)