Which role does Gel Strength play in the drilling process?

What role did photosynthesizing bacteria play in the formation of banded iron formations and how does this factor in to the changing composition of the oceans and, subsequently, the atmosphere?

please break down different types of hydrocarbon that is produced and describe them and tell little bit about their importance in oil and gas industry

More explaination to understand????

Describe the main features of the Gulf Stream. What role does it play in the ocean heat budget? What momentum balance did we use to describe its flow and what momentum terms are involved? Sketch how the sea level gradient influences Gulf Stream currents. Also sketch how horizontal density gradients affect the Gulf Stream current.

Do you expect to get a different x-ray diffraction pattern for two samples of pure Aluminum: Sample #1 – a cube 1cm x 1cm x 1cm in size, or Sample #2 - a powder of aluminum with a particle size diameter of 1 mm?

Indicate whether you will need to adopt a kinetic or equilibrium approach for determining the mass balance in the following cases:

i) To determine the adsorption of an organic compound from water to activated carbon.

ii) To determine the concentration of a pollutant in a room due to continuous emission in indoor air.

iii) To determine the dissolution of oxygen in an aquatic system.

iv) To determine the phosphorus balance in a lake.

XP10. Methanol (CH3OH) can be used as an antifreeze or fuel and can be synthesized from carbon monoxide (CO) and hydrogen (H2). The product from a reactor contains CO, H2, CH2OH, and 102 mol/h N2 (an inert component). The total flow rate of the feed to the reactor is 476 mol/h, and the feed contains an equal molar flow rate of CO and H2. The total flow rate exiting the reactor is 318 mol/h. (a) Draw and label a process flow diagram. (b) Calculate the molar flow rates (mol/h) of each component exiting the reactor.

A vessel contains a mixture of equimolar liquid benzene and liquid toluene that is in equilibrium with their vapors and air. The temperature of the mixture is 40 degrees celsius. The mole fraction of air in the vapor phase is .6 or 60%. What is the total pressure and the mole fraction of benzene in the vapor phase?

Consider a 100 mol mixture that is 69.0% methane (CH4) and 31.0% ethane (C2H6). To this mixture is added 20.0% excess air. Of the methane present, 90.40% reacts, 92.30% of which forms carbon dioxide (CO2), and the balance forms carbon monoxide (CO). Of the ethane present, 86.0% reacts, 92.30% of which forms carbon dioxide, and the balance forms carbon monoxide.

a) What is the theoretical amount of oxygen required for the fuel mixture?

b) What amount of air is added to the fuel mixture?

c) How many moles of methane are present in the product gas?

d) How many moles of ethane are present in the product gas?

e) How many moles of carbon dioxide are present in the product gas?

f) How many moles of carbon monoxide are present in the product gas?

g) How many moles of water vapor are present in the product gas?

h) How many moles of oxygen are present in the product gas?

i) How many moles of nitrogen are present in the product gas?

15

Part a) Some racers in swimming sprints hyperventilate right before the buzzer initiates the race. (a) How would hyperventilation affect the concentration of O2, HCO3, dissolved CO2, pH and oxygen affinity of hemoglobin?

part b) What are the advantages and disadvantages of the sprinter hyperventilating?  

part c) As the swimmer sprints, the swimmers muscle tissue is actively respiring, how does this affect the concentration of O2, HCO3, dissolved CO2, pH and oxygen affinity of hemoglobin?  

part d) Some racers in swimming sprints do not breath during the sprint, they hold their breath. How would holding your breath affect the concentration of O2, HCO3, dissolved CO2, pH and oxygen affinity of hemoglobin?

part e) What happens when a swimmer hyperventilates before the start of the race and holds his or her breath during the swimming sprint. Does the swimmer gain an advantage or disadvantage by this approach?

Question 2:

A train of two distillation colum

ns is being used to separate a mixture of hexane, heptane and octane.

The feed to the first column contains 40 mole% hexane, 30 mole% heptane and 30 mole% octane and

enters at a rate of 2500 kmol/h. In the first column 98% of the octane fed is recovered

in the bottom

product. Essentially no hexane goes with the bottom product and the mole fraction of octaine in the

bottom is 99.5%. The overhead product flows to a second column. The overhead product from the

second column contains 98 mole% hexane and no

octane. In addition, 98% of the hexane fed to this

column is recovered in the overhead.

a) Draw a diagram of the process, labeling all of the streams.

b) Calculate the molar flow rates and mole fractions for each stream in the process