Search for tag: "gas"

I take the first and second laws of thermodynamics and the gas laws to produce equations for the change in entropy for ideal gasses. I also show that an isentropic process is truly a polytropic one.

Here I introduce the tables of data that you'll need on this part of the course. I show the air, gas, liquids and solids tables and where they can be found in the LBoTF

Here I go through a first example of the use of the gas laws. This is to work out the mass of gas in a system.

Here I show the ideal gas laws. PV=mRT and P1V1/T1 = P2V2/T2. I also show how this can be applied to different gases using R=Ru/M

Here I introduce liquids and gases. I go throught the processes whereby liquids turn to gases. I describe the regions on p-v and t-v diagrams.

Here I introduce isothermal processes. I then derive the specific heat capacities at constant volume and pressure. I reinforce that these can always be used to substiture for temperature. Finally I…

Here I show that the polytropic process is a good way of describing changes in condition for closed systems with ideal gasses. I look at different values of the exponent, n. Then I calculate some at…

Paul Crowther provides an overview of the planets, asteroids and comets within our Solar System, plus a sense of its scale, enhanced by stunning images from astronauts, NASA, and ESA spacecraft.