There are 640 acres in a square mile. How many square miles are there in 80 acres?
a. 1/16
b. 1/8
c. 1/4
d. 1/2
b. 1/8
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Set up a system of equations that relate the mole fractions of Q, W, Y and Z in the mixture at equilibrium to the two equilibrium constants K1 and K2. You don’t have to solve the equations, but the number of equations and unknowns must be equal such that they could be solved. Assume a reference pressure of 1 bar.
The following pair of reactions is carried out in the gas phase:
Q+W ?Y
Q+Y ?Z
These compounds can be modeled using the virial equation at pressures of up to 15 bar:
And mixtures of the compounds can be modeled as an ideal solution of real gases.
A vessel initially contains 5 moles of Q and one mole of W, and the vessel is maintained at P=10 bar and T=700 K. The equilibrium constants of the reactions, K1 and K2, are both known at this temperature.
Which of the following statements regarding discrimination issues is true?
a. Employers can avoid gender-related issues by hiring only men. b. Employers can minimize workplace discrimination by hiring based on valid, job-related requirements. c. Employers avoid claims of job discrimination by hiring anyone who applies for a job, if a position is available. d. Employers are justified in ignoring claims of sexual harassment against male employees.
Maintaining soil reaction at pH 7.0 is likely to virtually eliminate any significant ________ by heavy metals applied to soils with sewage sludge
A) plant uptake B) leaching C) adsorption D) precipitation E) both A and B
Which type of metering device used on flooded evaporators opens to admit more liquid refrigerant into the evaporator when the liquid level in the evaporator drops?
A) Automatic expansion valve B) Low-side float C) Electronic expansion valve D) High-side float