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1) Assuming the pump and the air in it comprise the system, what is the sign of w when you compress the air?
Answer: a) w>0 b) w= 0 c) w<0
2) What is the sign of q for this process?
Answers: a) q>0 b) q= 0 c) q<0
3) Based on your answers to parts above, can you determine the sign of Delta E for compressing the air in the pump?
Answer: a) Sign of delta E is exactly negative b) cannot absolutely determine sign of delta E c) Sign of delta E is exactly positive
an expandable gas does 165.0 J of work on its surroundings at a constant pressure of 1.00atm. If the gas initially occupied 68.0 mL, what is the final volume of the gas?
Ammonia, NH3, is a stronger ligand than Cl- but weaker than CN-. Complete the balanced equations for the reactions that are predicted to occur
the freezing point of ethanol c2h5oh is -114.6 degrees c and the molal freezing point depression constant for ethanol
What is the difference between an ion-dipole force and dipole-dipole force? I have no idea what a dipole is.
The solubility of a slaked lime, Ca(OH)2, in water is .185g/100mL. What volume of .00400 M HCl is needed to neutralize 10.0mL of a saturated Ca(OH)2 solution
Suppose that the molar concentrations for CO and H2 at equilibrium are [CO] = 0.05 and H2= 0.08 . Use the formula CH3OH= Kc[CO][H2]^2 to calculate the concentration of CH3OH.
Estimate the Vmax and Km of the enzyme catalyzed reaction from both of the plots. Compare your results from the two methods and explain why they are slightly different.
What spectroscopic method would you use to unambiguously distinguish between the following isomeric acids. Give an explanation of how the spectra are interpreted to give you an assignment for each compound.
Citric acid, found in citrus fruits, is a triprotic acid, H3C6H5O7. Write the Chemical equations for the three-step ionization of this acid in water and write the three Ka expressions (equilibrium laws)
Write an equation to show how the base NaOH(s) behaves in water. Include states of matter in your answer.
Calculate delta H^degree (in kilojoules per mole) for benzene,C6H6 , from the following data: 2C6H6(l)+15O2(g)---->12CO2(g)+6H2O(l), delta H^degree= -6534 kJ
Which of the following statements correctly describe the energy and energy changes in a system? Select all that apply. 1. Energy is defined as the ability to do work.
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