Thermal Physics

Question 1

Thermal equilibrium

Answer 1

Occurs when temperature differences between two objects , hotter will lower and colder will hotter , UNTIL REACH SAMS EQUILIBRIUM TEMPERATURE

Question 2

Internal energy

Answer 2

Electrostatic and kinetic

Higher electrostatic is gases and lowest is solids

Thus increasing temp changing from solid to liquid is increasing potential and kinetic

Question 3

Shc

Answer 3

The amount of energy required to change 1 g temp of substance by 1 degree

Question 4

Latent heat?

Answer 4

This is the flat lines on graph energy needed to convert from one state to another

Fusion solid to liquid
Vaporisation liquid t9 solid

Question 5

This questions about ice

Answer 5

First the ice needs energy ti make it water, it takes this from the higher temp

So if it gains energy, water loses energy so it decreases in temp, find new temp

Now you have to waters of different temp. Energy will move from high temp to low temp

Thus they will both become same temp, higher becoming lower and lower becoming higher

The energy it needs to give = to energy it gains , make equations and solve