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1) Determine the change in entropy for the expansion of 0.10 mole of an ideal gas from 2.0L to 3.0 L at constant temperature?
My work: 0.10 mole * (8.314 J/K)/ (1 mole) * ln (3.0L/2.0L) = 0.33 J/K
2) To what fraction of its original volume must a 0.50 mole sample of ideal gas be compressed at constant temperature for change in entropy to be -6.7 J/K?
My work: 0.50 mole * (8.314 J/K) / ( -6.7 J/K ) ??? I dont know how to solve this problem.
Calculate the of a solution prepared by mixing equal volumes of 0.21 methylamine (CH3NH2, Kb = 3.7 x 10^-4 ) and 0.61 M CH3NH3Cl.
A 1L steel tank is fitted with a safety valve that opens if the internal pressure exceeds 850 torr. It is filled with helium at 23 oC and 0.991 atm and placed in an oil bath. To what temperature (oC) will the oil bath need to be heated to first ..
At 298 K and 1 bar pressure, the density of water is 1.00 , and C=75.3J K^-1 mol^-1. The change in volume with temperature is given by delta V=Vinitial*beta delta T , where beta, the coefficient of thermal expansion
1. a protein binds a single trna molecule in the reactionprotein trna ----gt protein-trnanbspnbsp lt----a biochemist
Give the bond angle and describe the shape around the central atom designated in this molecule. O in HO of H3PO4 (no H-P bond) a. trigonal planar; 120° b. trigonal planar;
Calculate the delta H reaction for the combustion of glucose (C6H12O6) using delta H(f knot) values. Calculate the delta H(f knot) of glucose to be used in the above calculation using the following information.
Carbon is a fascinating element that is capable of forming four covalent bonds.
Calculate the free energy change if the ratio of the concentrations of the products to the concentrations of the reactants is 24.5, and the temperature is 37.0 °C? ?G°\' for the reaction is -16.7 kJ/mol. The constant R = 8.3145 J/(mol•K)
the temperature of a 2.0 liter sample of heluim gas at STP is increased to 27 celsius and the pressure is decreased to 80.0 kPa. what is the new volume of the helium sample.
Compute molarity of silver nitrate (AgNO3) in a solution prepared by adding 1.62*10-2 g of AgNO3 to sufficient distilled water to bring the solution volume to 100mL
What mass of carbon dioxide (in ) is produced upon the complete combustion of 18.9 of propane (approximate contents of one 5-gallon tank). Assume that the density of the liquid propane in the tank is 0.621.
Initial temperature of rod = 100 °C; mass of H2O in calorimeter =130 g; cH2O = 4.184 °C g . (Assume the calorimeter has negligible heat capacity).
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