chapter 9: first law of thermodynamics 🤒

Question 1

does ideal gas have the largest amount of PE?

Answer 1

yes

Question 2

what happens when there is an increase in the temperature of the object?

Answer 2

speed of particles will increase = KE have increased = increase in internal energy

Question 3

what happens when there is change in state?

Answer 3

causes separation between the particles to increase = PE increased = internal energy increased

Question 4

definition of specific heat capacity

Answer 4

quantity of heat required to produce a unit of change in temperature per unit mass of that substance

Question 5

definition of specific latent heat of fusion

Answer 5

amount of heat required per unit mass to change a substance from solid state to liquid state without any change in temperature

Question 6

definition of latent heat of vapourisation

Answer 6

amount of heat required per unit mass to change a substance from liquid state to vapour state without any change in temperature

Question 7

definition of first law of thermodynamics

Answer 7

in a closed system, the increase in internal energy is equal to the sum of heat supplied to the system and the work done on the system