The cooler the gas, the faster it condenses - more lower KE particles can be attracted together. This increase in the particle kinetic energy store increases the rate of particle collision AND the force of the particle impacts on the container surface - thus raising the pressure with increase in temperature. When the fast moving gas particles collide with a surface, their millions of impacts create a force that we measure as gas pressure - the total force of impacts per unit area. BUT, is there limit at the lower end of the temperature scale? The density of materials and the particle model of matter gcse physics revision notes.
A worksheet to be used to consolidate specific latent heat. I cannot take credit for this FREE.
(0). Marking resources for GCSE Science · ajhop. Specific latent heat calculation practice for GCSE. Answers included.
Video: Specific latent heat worksheet gcse Specific Heat: GCSE revision
40 Science cover lesson / substitute lesson worksheets. StartEducation. Math Worksheets. A series of free GCSE/IGCSE Physics Notes and Lessons. The following diagram shows the formula for specific latent heat.
Scroll down the.
This lab allows for students to explore specific heat capacity through the eyes of a chef. English Language Arts. LecturesWorksheetsScaffolded Notes. Adult Education.
At constant temperature, increasing the volume decreases pressure because the collisions are more spread out over the same area - less particle collisions per unit area.
Evaporation is when the highest kinetic energy particles of a liquid escape from the surface ie can overcome the attractive forces of the bulk of particles. The skills involved are.
Specific latent heat worksheet gcse
|Increasing the energy store of gas.
You should get two horizontal sections on the graph where the latent heat of fusion melting at 0 o C or the latent heat of boiling vapourising at o C are being absorbed to weaken the intermolecular forces between the water molecules, without rise in temperature. You Selected: Keyword specific heat capacity. To change the state of a material requires either the input of heat or the removal of heat from the material and this is called the latent heat.
Specific latent heat calculations. The easy questions are aimed at foundation tier C grade students; these do not require students to rearrange equations or convert non-standard units.
Solids : In solids there are stronger forces of attraction between the particles which prevents the particles moving around and passing each other.
1. Figure 1 shows three collections of molecules. One is a solid one a liquid and one a gas. Which is which? 2. Revise what latent heat is and how it relates to the changes in state, energy and mass of different materials as part of National 5 Physics.
thermal energy for a change in state is measured in joules (J); mass is measured in kilograms (kg); specific latent heat is measured in joules per kilogram (J/kg).
These resources are fully differentiated lessons aimed at teaching Physics, with links to the Energy and Particle model of matter.
Increasing the temperature of a gas increases its kinetic energy store.
Video: Specific latent heat worksheet gcse GCSE Science Physics (9-1) Specific Latent Heat
To speed things up, heat the beaker of ice steadily with a bunsen flame. When a solid is heated from the solid state to the gaseous state and the temperature of the system measured continuously, there are two horizontal sections on the graph where the temperature does not rise, despite the constant input of heat energy continuous heating.
Finish taking temperature readings after 5 minutes of boiling. Place on a tripod and gauze and record the temperature at the start.
Specific latent heat worksheet gcse
|If the temperature is kept constant and the volume increased, the impacts are more spread out and less frequent per unit area, so the gas pressure decreases.
It will stop expanding when the internal balloon pressure drops to the same as the external pressure.
This is quite a dangerous situation that fire-fighters face when tackling a fire at a factory where gas cylinders are used - the high temperatures and high pressures created in the gas cylinders will cause them to explode violently. The particles collide with the container surface completely at random and impact at every angle, BUT, the effect is to create a net force at right angles to the surface - gas pressure!
The more forceful the collisions on a surface or the greater the number of collisions per unit area of surface, the greater the pressure, assuming the gas volume keeps constant.