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"ChEn-1070: Introduction to Chemical Engineering Spring 2019 UMass Lowell; Profs. Manohar and de Almeida **29Oct2019**\n",
"\n",
"# Laboratory Work 05 29Oct2019\n"
]
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"### Name: `your name`"
]
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"### Rubric for each assignment: \n",
"\n",
"| Context | Points |\n",
"| ----------------------- | ------- |\n",
"| Precision of the answer | 80% |\n",
"| Answer Markdown readability | 10% |\n",
"| Code readability | 10% |\n",
" "
]
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"### Guidance:\n",
" + \n",
" Save your work frequently to a file locally to your computer.\n",
" \n",
" + \n",
" During your work and before submitting the final version do: `Kernel` -> `Restart & Run All`, to verify your notebook runs correctly.\n",
" \n",
" + \n",
" Save your file again.\n",
" "
]
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"source": [
"## Assignment 1 (20 pts).\n",
"### Using `mendeleev` and `scipy.constants`, calculate \n",
" + the molar mass of H$_2$SO$_4$ (g/mol) with 5 significant figures,\n",
" + the molar mass of H$_2$O (g/mol) with 5 significant figures, \n",
" + the number of atoms in one mole of each substance with 7 significant figures.\n",
"\n",
""
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"molar mass H2SO4 [g/mol] = 9.8072e+01\n",
"molar mass H2O [g/mol] = 1.8015e+01\n",
"# of atoms per mole of H2SO4 = 4.215499e+24\n",
"# of atoms per mole of H2O = 1.806642e+24\n"
]
}
],
"source": []
},
{
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"metadata": {},
"source": [
"## Assignment 2 (20 pts).\n",
"### Using `mendeleev` and `scipy.constants`, compute the values of:\n",
" + Boiling point (Celsius)\n",
" + Evaporation heat in one mole (Btu)\n",
" + mass density (lb/in$^3$)\n",
" \n",
"### for sodium using 6 significant figures"
]
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"Na boiling point [C] = 8.82950e+02\n",
"Na heat capacity [Btu] = 9.27913e+01\n",
"Na mass density [lb/in^3] = 3.50796e-02\n"
]
}
],
"source": []
},
{
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"metadata": {},
"source": [
"## Assignment 3 (20 pts).\n",
"### Using `mendeleev` and `scipy.constants`, compute the energy density $\\rho\\,c_p\\,\\Delta T$ for iron where:\n",
" + $\\rho$ is the mass density\n",
" + $c_p$ is the heat capacity\n",
" + $\\Delta T = 86.7$ K\n",
" \n",
"### and express the result in Btu/in^3 using 6 significant figures"
]
},
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"execution_count": 7,
"metadata": {},
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"name": "stdout",
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"text": [
"Fe energy density [Btu/in^3] = 4.69725e+00\n"
]
}
],
"source": []
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Assignment 4 (20 pts).\n",
"### Using `mendeleev` and `scipy.constants`, compute the mole flow rate per minute of 9.45 L/min of dodecane when its mass density is 0.75 g/cc; use 4 significant digits."
]
},
{
"cell_type": "code",
"execution_count": 8,
"metadata": {},
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{
"name": "stdout",
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"text": [
"molar flow rate [mole/min] = 4.161e+01\n"
]
}
],
"source": []
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Assignment 5 (20 pts).\n",
"### In a mixture of ethanol and water, their mass concentrations are 0.45 g/cc and 0.83 g/cc, compute the molar density of the solution in mol/L. Using `mendeleev` and `scipy.constants`, present the result with 5 significant figures."
]
},
{
"cell_type": "code",
"execution_count": 10,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"solution molar density [mol/L] = 5.5841e+01\n"
]
}
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