Specific latent heat (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What happens to temperature when a substance undergoes a change of state?
What happens to temperature when a substance undergoes a change of state?
It remains constant
Why is specific latent heat of vaporisation always much larger than fusion for the same substance?
Why is specific latent heat of vaporisation always much larger than fusion for the same substance?
Vaporisation completely separates particles
Using , what happens to energy needed if the mass of substance is doubled?
Using , what happens to energy needed if the mass of substance is doubled?
Energy needed doubles
What is the specific latent heat of fusion?
What is the specific latent heat of fusion?
Energy to change 1 kg solid to liquid
During a phase change, which component of internal energy increases?
During a phase change, which component of internal energy increases?
Potential energy only
What is the specific latent heat of vaporisation of water in kJ kg⁻¹?
What is the specific latent heat of vaporisation of water in kJ kg⁻¹?
2260
On a temperature-time graph, what do horizontal sections represent?
On a temperature-time graph, what do horizontal sections represent?
Phase changes occurring
Where does the energy go during a change of state?
Where does the energy go during a change of state?
Overcoming forces between particles
What is the specific latent heat of vaporisation?
What is the specific latent heat of vaporisation?
Energy to change 1 kg liquid to gas
For the same substance, how does compare to ?
For the same substance, how does compare to ?
is always much larger than