Consider two processes for taking a 0.200-mol sample of helium gas (monatomic he) from an initial state i to a final state f. given that the gas behaves ideally, in both processes, the initial temperature and pressure ar undergoes an isothermal compression to a volume of 2.00 x 10-3 m3 and pressure ps in process b, the gas undergoes an adiabatic compression followed by an isobaric compression to vf = 2.00 x 10-3 m3 a. draw the pv diagram showing both processes. 150 k, the gas pressure is 1.01 x 105 pa. in process a, the sample e b. find the magnitude of the difference in the quantities of energy transferred thermally to the gas qb-ql in the two processes.

Is there a picture to go along with this

If the heat engine is a perfect carnot cycle engine, thenefficiency = (t2-t1)/t2   where t1=temperature of cold reservoir ( ° k) = 135            t2=temperature of hot reservoir ( ° k)   = 325thereforeefficiency = (t2-t1)/t2 = (325-135)/325 = 0.5846 = 58%  note: this is the theoretical maximum efficiency of a perfect heat engine.   real-life engines do not achieve this value.

All these statements are related to drake's equation. it is a probabilistic equation that shows an aproximate number of civilizations in our galaxy that we can communicate with. all the numbers that are inserted into equation are not precisely known so the result varies from 1000 to 100,000,000. the equations was not created to calculate exact number of extraterrestrial civilizations but to increase scientific knowledge how to find them.the equation is: where: n=  represents the number of civilizations in our galaxy that we could in principle communicate with today.  the average rate of  star formation  in  our galaxy  the fraction of those stars that have  planets  represents the number of planets in the galaxy that are in principle capable of having surface liquid water and life.  essentially represents the probability that life eventually arises on a habitable planet.  represents the number of life-bearing planets in the galaxy.  epresents the total number of planets on which intelligent beings have evolved and developed a communicating civilization at some time in the galaxy's history.    essentially represents the probability that on a planet with life, some organisms will eventually evolve to the point where they can build radio telescopes.    is a factor that depends on how long civilizations that reach our level of technology are able to survive.