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The van der Waals equation of state was designed (by Dutch physicist Johannes van der Waals) to predict the relationship between pressure p, volume V and temperature T for gases better than the Ideal Gas Law does:=+pan2V2-VnbnRT
The van der Waals equation of state. R stands for the gas constant and n for moles of gas. The parameters a and b must be determined for each gas from experimental data. Use the van der Waals equation to answer the questions in the table below.
a. For water the numerical value of a is5.464 and the numerical value of b is0.0305. Use the van der Waals equation to calculate the pressure of a sample of water at 425.0°C with a molar volume of 0.183/L mol. Round your answer to 3 significant digits. Answer in atm
b. Use the Ideal Gas Law to calculate the pressure of the same sample under the same conditions. Round this answer to 3 significant digits also. Answer in atm
a 40-year-old manager at a prominent legalfirm in l.a. experiences abdominal pain post lunch. he goes to therestroom a
What mass of this substance must evaporate in order to freeze 250 of water initially at 25? (The heat of fusion of water is 334 the specific heat of water is 4.18 .)
Calculate the Ksp for zinc phosphate if 1.18 10-4 g of zinc phosphate dissolved to make 5.0 L of a saturated solution.
The ability to read a scale is becoming a lost art. Our Abbé refractometers use just such an old fashioned scale. With a line of people behind you waiting to use the instrument, you will need to be able to quickly and accurately read your refractive ..
Problem- Ok so I am doing an experiment in physical chemistry to calibrate a self built makeshift spectrophotometer in order to compare the absorbance and thereby concentration of two different dyes by plotting the drops of ink
The pressure and temperature remain the same, but the volume has changed to 14.0 . How many moles of gas () remain in the cylinder? in moles
What is the time frame for moving to ICD-11? Do you think this will be delayed as was ICD-10? Do you think we should move to ICD-11 next year?
Boron sulfide (B2S3) reacts violently with water to form dissolved boric acid, H3BO3, and hydrogen sulfide gas. What is the balanced Equation
carbonyl chloride cocl2 also called phosgene wasused in world war i as a poisonous gas. the equilibriumconcentrations
For each reaction, identify the acid-base conjugate pairs. Then rank all reactions in order of increasing tendency for the reaction to go to completion (to the right).
The plate is 10.00 cm thick (vertical dimension) and covered with water (n = 1.33) to a depth of 11.8 cm. Calculate the apparent thickness of the plate as viewed from above the water. (Assume nearly normal incidence of light rays.)
Explain how carbon NMR distinguishes the 3 isomers1, 2-dimethylbenzene, 1, 3-dimethylbenzene and1, 4-dimethylbenzene. Explain why are they difficult to distinguish using proton NMR
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