Engineering, 03.02.2020 23:45 brendacauani12345

Five moles of nitrogen are expanded from an initial state of 3 bar and 88c to a final state of 1 bar and 88°c. you may consider n2 to behave as an ideal gas. answer the following questions for each of the following reversible processes: (a) the first process is isothermal expansion. (i) draw the path on a po diagram and label it path a. (ii) calculate the following: w. q。au_ah. (b) the second process is heating at constant pressure followed by cooling at constant volume. (i) draw the path on the same po diagram, label it path b (ii) calculate the following te, qauah

Answers: 1

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Answers: 3

Answer

Engineering, 04.07.2019 18:10

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Answers: 3

Answer

Engineering, 04.07.2019 18:10

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.

Answers: 2

Answer

You know the right answer?

Five moles of nitrogen are expanded from an initial state of 3 bar and 88c to a final state of 1 bar...

Questions