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One mole of n-butane in a piston-cylinder assembly undergoes an irreversible isothermal expansion against a constant external pressure until the forces balance. The initial pressure is 10 bar, and the initial molar volume is 3 3 1023 m3/mol, and the final volume is 0.05 m3/mol. Take the temperature of the surroundings to be 298 K. Use the van der Waals equation of state and
(a) What is the initial temperature?
(b) What is the final pressure?
(c) How much work is done during this process?
(d) How much heat is transferred this process?
(e) What is the entropy change of the universe for this process?
Develop a trend line for the demand for fertilizer using computer software. Data collected on the yearly demand for 50 pound bags of fertilizer at Wallace Garden Supply are shown in the following table:
In 2008, a Gallup Poll asked 2335 U.S. adults, aged 18 or over, how they rated economic conditions. In a poll conducted from January 27-February 1, 2008, only 24% rated the economy as Excellent/Good.
A researcher obtains t = 4.00 and MD = 9 for a repeated-measures study. If the researcher measures effect size using the percentage of variance accounted for, what value will be obtained for r2?
indicate which student has the larger magnitude z score?art major x46 x with line over it 50.5 s5.2theater major x70 x
Indicatethe method ofconstructing histogram, frequency polygon and ogive. Define Frequency polygon and Frequency Curve. Explain clearly the relation that exists n them.
To estimate this proportion he went to a large student parking lot during the middle of a class day. He found that 325 out of 1037 cars (31%) were red.
a certain typing agency employs two typists. the average number of errors per article is 1.5 when typed by the first
What is the basic principle that can be used to simplify a polynomial? What is the relevance of the order of operations in simplifying a polynomial?
There are 8 men and 4 women in the math club. Four members are selected at random to attend a math conference. Determine the probability of selecting 2 men and 2 women.
rochelle contacted a company that produced electric motors and vector drives and its consultants told her that it would
For each of the following sampling scenarios, determine which test statistic is appropriate to use when making inference statements about the population mean.
a sample of 500 drivers was asked whether or not they speed while driving. the following tabel gives a two-way
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