Liquid pentane is burned with dry air, and the products are measured on a dry basis as 10.1% CO2, 0.2% CO, 5.9% O2, and remainder N2.
Find the enthalpy of formation for the fuel and the actual equivalence ratio.

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false