- #1
Finding latent heat of vaporisation
- Thread starter Bolter
- Start date
-
- Tags
- Heat Latent heat Vaporisation
In summary, the latent heat of vaporisation refers to the amount of heat energy needed to change a substance from liquid to gas at a constant temperature. It is measured through experiments and is affected by the substance, temperature, and pressure. This property is used in various industries, such as refrigeration and steam engines. The latent heat of vaporisation cannot be negative, but the latent heat of condensation can have a negative value.
- #2
BvU
Science Advisor
Homework Helper
- 15,978
- 4,805
Hi Boler, 
!
Sorry, no can do. Your own effort is missing :
//www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/
!Sorry, no can do. Your own effort is missing :
//www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/
- #3
Bolter
- 262
- 31
BvU said:Hi Boler,
Sorry, no can do. Your own effort is missing :
//www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/
Ok so I have made an attempt at it, and this is what I have got from using the following equation as shown.
Have I done this right?
- #4
BvU
Science Advisor
Homework Helper
- 15,978
- 4,805
What is latent heat of vaporisation?
Latent heat of vaporisation is the amount of energy required to change a substance from liquid to gas at a constant temperature and pressure.
Why is finding latent heat of vaporisation important?
Knowing the latent heat of vaporisation of a substance is important in various applications, such as designing heat transfer systems, understanding the behavior of materials, and predicting the effects of climate change on water bodies.
How is latent heat of vaporisation measured?
There are several methods for finding the latent heat of vaporisation, including the steam calorimeter method, the cooling curve method, and the boiling point elevation method. These methods involve measuring the temperature change and using the equations of thermodynamics to calculate the latent heat of vaporisation.
What factors affect the latent heat of vaporisation?
The latent heat of vaporisation is affected by the type of substance, temperature, and pressure. Different substances have different latent heat values, and the value also changes with temperature and pressure.
How does the latent heat of vaporisation differ from specific heat?
The latent heat of vaporisation is the energy required to change a substance from liquid to gas, while the specific heat is the energy required to change the temperature of a substance. Latent heat is involved in phase changes, while specific heat is involved in temperature changes within the same phase.
Similar threads
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help
-
Atomic and Condensed Matter
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help