An air-standard Otto cycle has a compression ratio of 9. At the beginning of compression, p1 = 95 kPa and T1 = 310 K. The mass of air is 3 g, and the maximum temperature in the cycle is 1020 K. Determine:
(a). the heat rejection, in kJ,
(b). the net work, in kJ,
(c). the thermal efficiency,
(d). the mean effective pressure, in kPa.

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas

Which polymers are most closely related? a. protein and nucleic acids b. cellulose and starch c. nucleic acids and starch d. nucleic acids and cellulose