At the beginning of the compression process of an air-standard otto cy- cle, p1-1 bar, t1-290 k, v-400 cm3. the maximum temperature in the cycle is 2200 k and the compression ratio is 8. determine (a) the heat addition, in kj, (b) the net work, in kj (c) the thermal efficiency, (d) the mean effective pressure, in bar, (e) the availability (exergy) transfer from the air accompanying heat rejection process, in kj, for t0 = 290 k, po = 1 bar.

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.