Write the stoichiometric equations for the combustion of methane with oxygen to form (a) CO₂ and H₂O and (b) CO and H₂O; and for the combustion of ethane with oxygen to form (c) CO₂ and H₂O and (d) CO and H₂O. Then prove that only three of these four reactions are independent.

Use your knowledge of the coast/the beach to illustrate how the lithosphere, biosphere, atmosphere and hydrosphere are all interconnected specifically in that region.

What values can be calculated given only the mentioned data?

The flue gas from a furnace burning a fuel of negligible nitrogen content is found to contain 12% CO₂, 7.2% O₂, 1.1 % SO₂ and 79.7% N₂

What are the values of the indo-burma hotspot,  you will need to highlight why this particular hotspot is important including its ecosystem services. You will also need to discuss why this particular hotspot is so important in terms of both local and global sustainability considering all three pillars: environment, economy and society.

When a chemical plant needs steam at multiple pressure levels, it is often economical to generate all the steam at a high pressure and then to let the steam down through pressure-reducing turbines to the desired pressure. This principle is illustrated in Figure 8.6. The downside of this approach is that as the exhaust pressure of the turbine increases, the theoretical (and actual) steam requirements increase, meaning that less energy is extracted. To illustrate this point, do the following:

a. Estimate the amount of energy extracted from 10,000 kg/h of 58.6 barg steam superheated by 165°C when connected to the following turbines (each 80% efficient):

i. Exhaust pressure is 4″ Hg absolute.

ii. Exhaust pressure is 4.82 barg.

b. Estimate the amount of energy extracted from 10,000 kg/h of saturated, 10.0 barg steam when connected to a turbine (80% efficient) exhausting at 4.82 barg.

c. Identify the locations of each of the three turbines described above on Figure 8.6.

From the book "Perrys Chemical Engineers", 6th ed Figure 8.5 and 8.6

Explain the concepts behind the three types of resistivity logs

1. Eutrophication is an example of a positive feedback loop, where change in the system promotes further change in the same direction. Describe another environmental issue that has synergistic effects with cultural eutrophication and how it exacerbates the problem.

1. How can we limit cultural eutrophication? Discuss two methods and their potential impacts.
2. What is stormwater runoff and why is it primarily a concern in urbanized areas?
3. What are three types of pollutants that could be carried in stormwater runoff? Discuss their sources and potential environmental impacts.
4. Describe two other potential sources of water pollution that contribute to the recommendation not to swim after a heavy rain.

A distillation column with a total condenser and a partial reboiler is separating ethanol and water at 1 kg/cm2 pressure. Feed is 32.0 mol% ethanol and is at 30°C. Feed flow rate is 100.0 kmol/h. The distillate product is a saturated liquid, and distillate is 80.0 mol% ethanol. The condenser removes 2,065,113 kcal/h. The bottoms is 4.0 mol% ethanol. Assume that CMO is valid. Find the number of stages and the optimum feed stage location. Data: CPL,EtOH = 24.65 cal/(mol°C) at 0°C. The enthalpy-composition diagram is given in Figure 2-4, and the y-x diagram is in Figure 2-2.

1. Heat Transfer Mechanisms

What are the four mechanisms of heat/energy transfer? Give an example for each. What happens to energy when water evaporates – gained or lost? What happens to energy when water condenses –gained or lost? Explain how thermohaline circulation of ocean water affects global temperature distribution. Must be 350 words long.

give a good explanation and examples of each. this is physical geography. they have to be long explanation.

Workers in the most chemical process industries are exposed to various
toxic chemicals without considering health and safety measures that could
lead to different harmful symptoms. If you will be given a task to work as a
chemical engineer, for health and safety in the process industries, what
necessary measures and risk assessment techniques would you
implement in order to control and reduce the level of risk?

What kind of glass do you get if you melt the following raw material mixes? (Niter, Barit, Nefeline,)

Consider some of the disaster events we have experienced or that you have seen in the news during the past few years, occurring locally, across a state, nationally, or globally. What event do you think is most likely to be the next "big" disaster? Tell why you chose this event, and what you think the Public Health Response system's role should be in responding to it.

6. How big were Aleut villages? Describe their houses. Discuss their social divisions and the role of the headman. How did a man show his rank?
7. What is special about the environment and location of the Plateau culture area? Give five key resources and defining characteristics of the Plateau.
8. According to their cosmology, who made the Nez Perce? How many villages did they have and how big were their villages? Describe their social hierarchy. Were they peaceful? What was their primary weapon?
9. Describe the typical Northwest town. Where was the best location? Describe their political organization. Discuss warfare- weapons, reasons, attack method.
10. Compare the Subarctic response to twins with that of the Kwakiutl. What was done to high-ranking Kwakiutl female babies? How did the Kwakiutl feel about the dead?