You build a silly type of thermal engine that only uses isobaric and isochoric processes. it has processed at 101.3kpa and 303.9kpa, and 0.01m^3 and 0.05m^3. when the system is at its lowest pressure and volume it has a temperature of 20 c. a) what is the total work done in a cycle? b) what is the hear added in a cycle? c) what is the change in internal energy in a cycle? d) on a pv diagram note the temperature at each corner of the process.

answer; ///(74) degrees is your answer..

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.

0 = 0.40 / 0 = 0

= 0.20 = 9.80 ⁄2 =?

=0 , = = 0.20 =0.50 0 0.40 ⁄

=0−122 =0−12(9.80 ⁄2)(0.50)2 =1.2