{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Homework+1

# Homework+1 - EML 3100 Homework 1 Due Wednesday January 18...

This preview shows pages 1–2. Sign up to view the full content.

EML 3100 Homework 1 Due Wednesday, January 18 From the Textbook : Problems 2.40, 2.47, 2.75, 2.82 Problem 5 : Hydrogen gas having an energy content per unit mass of e = 120 MJ/kg is stored in a tank at 200 bar and 25 ºC. The molecular weight of hydrogen is M = 2.016 g/gmol, and the corresponding gas constant is R = 4.124 J/g-K. The density of hydrogen is described by 𝜌 = 𝑝 𝑍𝑅𝑇 , where the compressibility factor Z corrects for the deviation from ideal gas behavior that occurs at high pressure. At 200 bar and 25 ºC, Z is estimated as 1.130. Determine the product e ρ in units of [MJ/m 3 ], which represents the energy content of the gas per unit volume. Problem 6 : The sketch below shows a curve in p - V coordinates defined by the polytropic equation 𝑝𝑉 𝑛 = ? , where n and c are positive constants. Verify the following related results: 𝑛 = ln( 𝑝 1 / 𝑝 2 ) ln( 𝑉 2 / 𝑉 1 ) = ln( 𝑝 2 / 𝑝 1 ) ln( 𝑉 1 / 𝑉 2 ) , 𝑝 ?𝑉 2 1 = 𝑝𝑉 ln 𝑉 2 𝑉 1 for 𝑛 = 1, 𝑝 ?𝑉 2 1 = 1 𝑛 − 1 ∆ 𝑝𝑉 for 𝑛 ≠ 1, Where

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}