What is the initial pressure of the gas what is the final

Assignment Help Mechanical Engineering

Reference no: EM13627643

1 kmol of N2 gas (ideal) is contained in a piston initially at 300K with a volume of 0.1 m^3. The piston cylinder is well insulated. A microwave gun then heats the gas for 30 seconds, where the poser of the microwave gun is 10 MW and the absortion coefficient of the gas is sigma= 0.1. During the microwave heating the N2 gas expands at a constant pressure.

a.) What is the initial pressure of the gas?

b.) What is the final temperature of the gas assuming the heat capacity is a constant?

c.) What is the final temperature from the change in enthalpy?

d.) What is the volume of the gas after heating?

e.) What is the change in entropy using the 1st TdS Relation? assuming Cv(T)=Cv(T1)

f.) What is the change in entropy using the 2nd TdS Relation? assuming Cp(T)=Cp(T1)

g.) What is the change in entropy using the 2nd TdS Relation? assuming Cp(T)=(Cp(T1)+Cp(T2))/2

h.) What is the change in entropy using the 2nd TdS Relation? using Ss and S1

i.) What is the work done by the gas?

Reference no: EM13627643

Questions Cloud

An lr circuit has a resistance r 25 w an inductance l 54 : an lr circuit has a resistance r 25 w an inductance l 5.4 mh and a battery of emf 9.0 v. how much energy is stored

What is the initial pressure of the gas what is the final : 1 kmol of n2 gas ideal is contained in a piston initially at 300k with a volume of 0.1 m3. the piston cylinder is well

Air enters a gas turbine with two stages of compression and : air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17 degrees celcius.

What is the shape meanexpected value and standard deviation : according to an irs study it takes a mean time of 330 minutes for taxpayers to prepare copy and electronically transfer

What is the initial pressure of the gas what is the final : 1 kmol of n2 gas ideal is contained in a piston initially at 300k with a volume of 0.1 m3. the piston cylinder is well

A hollow metal cube with sides 100mm floats at the : a hollow metal cube with sides 100mm floats at the interface between a layer of water and a layer of sae 10w oil such

The current in an rl circuit is zero at time t 0 and : the current in an rl circuit is zero at time t 0 and increases to 75 of its final value in 4.5 s. the time constant of

What is the shape meanexpected value and standard deviation : according to an irs study it takes a mean time of 330 minutes for taxpayers to prepare copy and electronically transfer

A steel plant heat treats steel rods by passing them : a steel plant heat treats steel rods by passing them through a 1000 degrees c oven. the steel rods are 3 meters in

User Account

All Pages