Carbonic anhydrase (CA) has a 25,000-fold higher activity (k_cat = 106 s^-1) than orotidine monophosphate decarboxylase (OMPD) (k_cat = 40 s-1). However, OMPD provides more than a 10¹⁰ higher “rate acceleration” than CA. Explain how this is possible.

Explain each answer in at least 1000 words each.

i. Explain the need for personnel protective equipment in combating hazards.
ii. Explain the importance of ventilation.
iii. List the precautionary measures for electrical equipment in a hazardous zone.
iv. Explain the importance of Classification and Labelling of chemicals.
v. Explain the need for Safety auditing in a process plant.

Describe the concept of a ‘canonical ensemble’ and why it is useful in statistical thermodynamics. Prove that for an ensemble of distinguisable independent molecules the canonical partition function Q=q^N

1. State whether each of the following are true or false.

A thermodynamic property is always conserved.

Internal energy change is not dependent on choice of system.

Enthalpy change is path dependent.

Volume change is not path dependent.

Sum of heat and work is path dependent.

Reversible work is path dependent.

Temperature is constant for an ideal gas if internal energy is constant.

Temperature is constant for an ideal gas if entropy is constant.

It is possible to convert work solely to heat in a cyclic process.

There is no enthalpy change in a reversible adiabatic process.

A process with no entropy change is always reversible.

A reversible process produces the most work.

Entropy is destroyed in a system when there is lost work.

Entropy of a system can never decrease.

Entropy of the entire universe can never decrease.

Write a note on nitrogen-fixing bio-fertilizers and phosphate-solubilizing bio-fertilizers. Discuss how one can control the pollution from fertilizer industries.

(No Plagiarism; Word Limit: 2000 Words)

 "Corrosion in the case of 316L stainless steel". What should be included like mechanisms, previous studies?

The ultimate goal of social media, mobile technology, and videos is to accommodate the customer better by providing him or her multiple ways of accessing information. Research metrics and tools used to measure these technologies and answer one of the questions below.

1. What metrics are used for social media analytics? Identify and discuss one of these metrics.
2. What metrics are used for video analytics? Identify and discuss one of these metrics.
3. What metrics are used for mobile analytics? Identify and discuss one of these metrics.
4. Find one tool to measure social media analytics. Explain how it works and why it is important. Share your results.
5. Find one tool to measure mobile analytics. Explain how it works and why it is important. Share your results.
6. Find one tool to measure video analytics. Explain how it works and why it is important. Share your results.

A fictional company has been producing propene oxide, C3H6O, from propene, C3H6, with a 96.0% yield. The process requires the use of a compound called m-chloroperoxybenzoic acid, C7H5O3Cl, which can be abbreviated as mCPBA. The entire reaction takes place in the solvent dichloromethane, CH2Cl2:

C3H6+C7H5O3ClCH2Cl2−−−⟶96.0% yieldC3H6O+C7H5O2Cl

The initial propene concentration in the solvent is 21.0 g/L.

Consider the prices of the following substances.

Also consider that the cost of waste disposal is $5.00 per kilogram of propene oxide produced.

Part A

A relatively simple way of estimating profit is to consider the the difference between the cost (the total spent on materials and waste disposal) and the earnings (the price at which the product can be sold).

Calculate the profit from producing 43.00 kg of propene oxide.

Express your answer numerically in dollars using three significant figures.

Alternative method

The company is developing a "greener" method of making propene oxide from propene using hydrogen peroxide, H2O2, in supercritical water with a vanadium catalyst. In the reaction 1.00 kg of vanadium catalyst and 32.0 kg of water are used for each kilogram of propene. 75 % of the vanadium catalyst can be collected and reused in a subsequent batch:

C3H6+H2O2V, H2O−−−⟶89.0% yieldC3H6O+H2O

Consider the prices of the following substances.

There is virtually no waste produced with this green process and there is no waste disposal fee, but the yield is only 89.0%.

Part B

Calculate the profit from producing 43.00 kg of propene oxide by this alternative green process.

An ideal gas known as Minesium (MW=34.0) is flowing at a steady rate of 0.125 lbmol/min through a 62.5 in2 circular tube at a temperature of 185 °F and pressure of 42.0 psig. What is the velocity (ft/s) of this ideal gas? Assume Patm = 14.7 psia.

Does anybody know a good program for making diagrams like P,V and P,T etc. ?

Water at 200 Fahrenheit is pumped from a storage tank at the rate of 50 gallons/minute. The motor for the pump supplies work at the rate of 2 hp. The water goes through a heat exchanger, giving up heat at the rate of 40,000 BTU/minute(Q Net In), and is delivered to a second storage tank at an elevation 50 feet above the first tank. What is the temperature of the water delivered to the second tank?

3. The producer gas made from the coke has the following composition :
CO : 28%, CO2 : 3.5%, O2 : 0.5% and N2 : 68%.
The gas burned with such a quantity of air that the oxygen from air is 20% in excess of the net oxygen required for complete combustion. If the combustion is 98% complete, calculate the weight of the gaseous product formed. Given the oxidation reaction as below:
CO + ½ O2  CO2