Lab Report: Combustion Virtual Combustion Gas AnalyzerLab guide to the combustion LabCombustion Gas Analyzer Gas AnalyzerUsing the Orsat Analyzer to the virtual combustion Analysis lab: Select Pentane (Molecular weight= 72.15, the enthalpy of formation=-174. kJ/mol)2) Click to Load sample, record the fuel mass3) Click Do Elemental analysis, check the elements, and4) Click Do Combustion Analysis, record the product massesFind the followings;1) Compare mass ratio of C and H, (and possibly O) in the masses of Fuel and H2O and CO2 in the lab data and guess the chemical composition of the fuel. and check with the known chemical composition of your selected fuel.2) Find the equation for combustion with Oxygen only (attached)4) Estimate the Adiabatic Flame temperature with 100% air.In order to calculate adiabatic flame temperature(AFT), since the AFT is defined as the maximum temperature (no heat transfer) in combustion with air, you need to rewrite the combustion chemical equation with the 100% air, in other words, n(O2 + 3.76 N2). Then, apply the enthalpy balance with Q=0 and follow the trial-error method as in the following document.For chemical infor of your fuel;refer to: your fuel and click on “Gas phase thermochemistry data” where the enthalpy of formation can be found.

Answer the following questions. 

1 – PERFORMANCE TUNING – If indexes are so important for performance, why not index every column in every table? (Include a brief discussion of the role played by data sparsity.)  List and describe 3 reasons.  (14 pts )

2 – Database Administration

The user of cloud-based data services does not signal the end of DBAs, but it does have a significant impact on their role and can also impact the security of the data.  Answer 1 of the following questions:   (14 pts)

Discuss how the role of the DBA has transformed with the introduction of cloud databases.  Be sure to use at least one external source to support your position. (approx. 150 words)

Protecting data security, privacy, and integrity are important database functions. What activities are required in the DBA’s managerial role of enforcing these functions?  List and describe at least 3. 

3 – Business Intelligence – Choose a NoSQL database technology (e.g. Hadoop, Spark, MongoDB, Neo4j, CouchDB, and others) and provide a brief description of that technology – what is it used for, what type of technology is it, how does it manage data, when would it be used, etc.  (appox. 150 words) (15 pts)

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