In a certain engine, the partial pressure of NO.1 gas was 12 pa. If the total pressure in the engine is 8300 pa, calculate the mixing ratio of .NO in ppmv

Consider the extraction of energy from the tail gases from a nitric acid adsorption tower, such as that described in Chapter 4, Example 4.4. Gas composition, kmol/h: 0₂ N₂ NO NO₂ H₂O 371.5 10,014.7 21.9 Trace saturated at 250°C If the gases leave the tower at 6 atm, 25°C, and are expanded to, say, 1.5 atm, calculate the turbine exit gas temperatures without preheat, and if the gases are preheated to 400°C with the reactor off-gas. Also, estimate the power recovered from the preheated gases.

A supply line carries a two-phase liquid–vapour mixture of steam at 450 psi. A small fraction of the flow in the line is diverted through a throttling calorimeter and exhausted to the atmosphere at 20 psi. The temperature of the exhaust steam is measured as 350°F. Determine the quality of the steam in the supply line.   Select one: a. 95.7% b. 98% c. 92% d. 100%

Why is h3 just 130 and you don't do the same as with h2 with the dryness fraction?