Find final temperature of an average natural gas
What would be the final temperature of an average natural gas at 320oF, when the pressure is dropped from 3000 to 1800 psia?
(a) If flowing through an expansion valve.
(b) When expanding through an adiabatic and reversible engine.
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What are the concentrations of hydrogen ion and acetate ion in a solution of 0.10M acetic acid, HC2H3O2? What is the pH of the solution? What is the degree of ionization? Ka = 1.7 x 10^-5
12 tons of cooling to a chilled water stream. What must the flow rate through the chiller be, in gpm, if the temperature of the supply is 46 degrees F and the return water is 60 degrees F.
Discuss briefly the similarites and differences between all known kinds of intermolecular forces. Use mathematical expressions to support your discussion.
A spring is hanging vertically from a ceiling. (Assume the spring's mass is negligible.) I hang a 0.5kg mass on the spring and let the spring slowly stretch to an equilibrium position.
New York City is the most expensive city in the United States for lodging. The mean hotel room rate is $204 per night (USA Today, April 30, 2012). Assume that room rates are normally distributed with a standard deviation of $55. What is the cost o
Magnesium ions can be precipitated from seawater by the addition of sodium hydroxide. How much sodium hydroxide in grams must be added to a sample of seawater to completely precipitate the 89.2 mg of magnesium present?
For the air system, the work is -62 BTU. Determine the final volume. A power cycle with a thermal efficiency of 28% has Qin=600 Btu, what is Qout in Btu?
If the standard deviation for the salaries of both genders is approximately $5200 and the salaries are normally distributed, find the 90th percentile salary for male professors and for female professors.
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Which of the following best describes the rationale of those public officials who are promoting the policy referenced in the title of the Texas Tribune article?
Problem: Political messaging and how a policy is framed to one's supporters and to the general public are important.
What are 2 or 3 advantages of conducting policy evaluations in criminal justice? What is the significance of policy research in policy evaluation?
What is society's goal for unions? To limit individual employees' bargaining power To ensure that workers have a voice in how they are treated
How can grassroots movements and community-led initiatives drive change in addressing environmental injustices, and what strategies have proven
The control model is based on strict authority and rigid rules. It emphasizes discipline, surveillance, and limited privileges for inmates.
Question: Which of the following statements illustrates the impact of the reform era (1900-1920) on US political parties?