Reference no: EM13775662
1. Thiazole (C3H3NS) occurs natrually as part of vitamin B1 (thiamin) such as in pasta and bread.
Thiazoles have anti-tumor and anti-viral properties but most thiazole compounds are flavourings. If it is combusted perfectly in air the products are carbon dioxide, water, hydrogen sulphide (H2S) and nitrogen.
What is the balanced reaction?
What is the RMM of thiazole?
What is the fuel-air mass ratio?
What is the oxygen depletion?
What is the yield of CO2?
What is the yield of H2O?
What is the yield of N2?
For ideal combustion, what is the yield of carbon-monoxide?
You may assume the composition of air is 21% O2 and 79 % N2. A periodic table is provided overleaf, should you need one.
2. Critically review and distinguish superficial, partial-thickness and full thickness burns and explain the significance of ‘eschar'. How would eschar appear on a Lund-Browder chart?
3. Critically review zone and field models used for compartment fire modelling. Provide examples and critically analyse the main assumptions, limitations, advantages and disadvantages of these models.
4. The underside of a smoky layer 14m x 9m is radiating like a flat, isotropic plate at 510°C to the floor of a compartment 2.15m below. The mean emissivity is 0.41 and the floor is homogenous/flat plate at 35°C. What is the rate of heat transfer from the smoky layer to the floor?
5. A new type of insulating board has been developed by that esteemed construction company Kaput Ltd. They warn that at extremely high heat fluxes it could be ignited, but they don't think it's very likely and it would take hours, so there's no real risk!
As an expert on the ignitability of materials you are asked to perform a thick/thin calaculation given the following data on the material:
Density 2300 kg m-3
Thermal conductivity 0.82 W m-1 K-1
Specific heat capacity 824 J kg-1 K-1
Thickness of board 7mm
Initial/ambient laboratory temperature 18°C
Ignition temperature 410°C
It is considered that if 20 kW m-2 would be enough to ignite most materials (i.e. indicative of flashover fires). Perhaps something easy to ignite would only require 10 kW m-2. Would this material ignite within ten minutes if exposed to 10 kW m-2?
|
What elements are necessary for a ucc contract
: Let's start by discussing what you learned in the Battle of the Forms presentation: what elements are necessary for a UCC contract to be formed
|
|
Transactions as either revenue or capital expenditures
: Depreciation expense is calculated using estimates of an asset's salvage value and useful life. Classify the below transactions as either revenue or capital expenditures. Land improvements are:
|
|
What is the basis of the ftcs power to regulate ads
: What is the basis of the FTC's power to regulate ads for diet products? What standards has the FTC established to determine if a diet product claim is unfair and deceptive
|
|
Egoism-pleasure and indifference
: The author discusses "Egoism, Pleasure, and Indifference." Your assignment is to write about one of the following ethical theories:
|
|
Critically review zone and field models
: Critically review zone and field models used for compartment fire modelling. Provide examples and critically analyse the main assumptions, limitations, advantages and disadvantages of these models.
|
|
Analyze the pattern of robbery activity
: What technological assistance would be needed to conduct this operation? What measures would you take to analyze the pattern of robbery activity? How would you go about synthesizing the data and coming to a conclusion based on the data
|
|
The organization of u.s. health care
: Why have physician reimbursement models changed over the years?
|
|
Prepare the year end adjusting entry for uncollectible
: Warner Company’s year-end unadjusted trial balance shows accounts receivable of $99,000, allowance for doubtful accounts of $600 (credit), and sales of $280,000. Uncollectible are estimated to be 1.5% of accounts receivable. Prepare the December 31 y..
|
|
Features added to preferred stock
: 250- to 350-word paper explaining why preferred stock is referred to as preferred and what some of the features added to preferred stock are that make it more attractive to investors. Would you select preferred stock or common stock as an investme..
|