Explain advantages and disadvantages of nanotechnology and direction of development.

In what ways does establishing a safety and health management system in an organization complement and improve compliance with the OSHA standards? Provide examples in your discussion.

Your response should be at least 200 words in length.

An IV bag is labeled as 0.900% w/w sodium chloride in water solution with a density of 1.025g/mL. What is the concentration of sodium chloride in the solution expressed in molarity, molality, and mole fraction?

Sodium chloride : NaCl, 58.44 g/mol

A bicycle rider is interested in the effects of temperature on air density. A change in temperature will also affect the tire pressure.

a) Write a computer program that calculates air density at atmospheric pressure for temperatures from -10?C to 50?C.

b) Assume that a bicycle tire is inflated to an absolute pressure of 450 kPa at 20?C. Assume also that the volume of the tire does not change with temperature. Write a program to show how the tire pressure changes with the temperature in the same range, -10?C to 50?C.

Prepare a table or graph or both.

5. Boris recently synthesized an explosive compound he named Badenoughium. The molecular formula for Bdenoughium is H5C3N3O9. The balance chemical equation for the ignition of Badenoughium is: 4 H5C3N3O9 (l) ? 12 CO2 (g) + 10 H2O (g) + O2 (g) + 6 N2 (g) a. When Badenoughium is ignited it has a ?H o rxn of - 5678 kJ. i. Determine the ?H o f for the compound Badenoughium. ii. Determine the ?H o rxn for when 1.25 grams of Badnenoughium is ignited. b. Boris ignites 1.25 grams of his compound in a 500.00 mL at a temperature of 100.0 oC. i. Determine the partial pressure for each of the gases produced when 1.25 grams of Badenoughium is ignited. ii. Determine the total pressure in the reaction vessel after 1.25 grams of Badenoughium has been igntited.

the adiabatic flame temperature (theoretical maximum temperature) of black coal in air is over 2000^oC. If the ambient temperature is 20^oC then the theoretical maximum efficiency of a coal fired power station is approximately 87%.

Why then is the efficiency of even the best coal fired power stations less than 50%.

Pollution and climate change are an example of either the Diner's Dilemma or the Tragedy of the Commons. Explain which of the them it is an example of and give reasons for your answer.

Briefly discuss whether fossil-fuel derived energy can ever be environmentally friendly?

a. If a 6 cm diameter cylinder containing 2 g of an ideal gas at 25o C is fitted with a 5 kg piston with a 20 kg weight on the piston, calculate the pressure and volume of the ideal gas if the atmospheric pressure is 1 atm. If the 20 kg weight is removed, provide detailed comments without further calculations on what would happen. You may assume a molecular weight of 28 for the gas.

b. Calculate the energy required to heat a gas from 30o C to 150o C if the gas flow rate and pressure at the heater outlet are 1.5 m3 /min and 125 kPa absolute respectively. Assume the specific enthalpy change is about 4,000 J/mol for the process.   

1.) Determine the number of moles of hydrogen atoms in each sample.

**Round to 2 Sig Figs**

a.)8.95×10^?2 mol C4H10

b.)1.5 mol CH4

c.)2.8 mol C6H12

d.)1.80 mol C8H18

2.) A sample of a compound is decomposed in the laboratory and produces 660 g carbon, 139.0 g hydrogen, and 220.2 g oxygen. Calculate the empirical formula of the compound.

**Express your answer as an empirical formula.**

Case study: Bophal disaster. Research and write a detailed report on the disaster and some of the key lessons from this inciden

Consider the reactor system shown below. The reaction is exothermic so a cooling system is provided to remove the excess energy of the reaction. In the event that the cooling function is lost, the temperature of the reactor would increase. This would lead to an increase in reaction rate, leading to an additional energy release. The result would be a runaway reaction with pressures exceeding the bursting pressure level of the reactor vessel. The temperature within the reactor is measured and is used to control the cooling water flow rate by a valve. Perform a HAZOP study on this unit to improve the safety of the process. Use as a study node the cooling coil (process parameters: flow and temperature) and the stirrer (process parameters: agitation)

4.17 A rigid insulated tank is divided into two parts, one that contains 1 kg of steam at 10 bar, 200 °C, and one that contains 1 kg of steam at 20 bar, 800 °C. The partition that separates the two compartments is removed and the system is allowed to reach equilibrium. What is the entropy generation?

This is the problem in the book Fundamentals of Chemical Engineering Thermodynamics 1st edition. In the solution, it says first obtain volume and internal energy at 15.85 bar. Can you tell me how did the answer get 15.85 bar?

How will understanding the key elements of process safety and occupational safety allow chemical technicians to contribute significantly to the reduction of risks and hazards