Page 11 - Finalll Science BB Prep2 t1 2025_Neat

F

D E

Liquid
& Gas
B C

Solid &
Liquid

A
Time

• Continuous increase in temp. (Solid only)

AB • Molecules vibrate faster as gaining thermal energy (More K.E)

• No change in temperature "The melting point"(Solid & Liquid)
• As the absorbed thermal energy is consumed in weakening the
BC attraction forces. bet. solid particles. (No change in K.E)

• Continuous increase in temp. (Liquid only)
CD • Molecules speed increases as gaining thermal energy(More K.E)

• No change in temperature "The boiling point" (Liquid & Gas)

• As the absorbed thermal energy is consumed in weakening the
DE attraction forces bet. liquid particles. (No change in K.E)

• Continuous increase in temp. (Gas only)

EF • Molecules speed increase as gaining thermal energy (More K.E)

First Term 20