Asmall oxidized horizontal metal tube with an od of 0.0254 m and 0.61 m long with a surface temperature at 588 k is in a very large furnace enclosure with firebrick walls and the surroundings air at 1088 k. the emissivity of the tube is 0.60 at 1088 k and 0.46 at 588 k. calculate the heat transfer rate to the tube by radiation.

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

Ab c or d ? i’m not sure what the answer is