by definition of entropy
Page 6 (5) At 298 K and I bar pressure, the density of water is 0.9970...
Page 6 (5) At 298 K and 1 bar pressure, the density of water is 0.9970 g* cm 2, the coefficient of thermal expansion, is 2.07x10 K, and Crm 75.3 J Kemol"'. If the temperature of 282 g of water is increased by 38.1 K caleulate w, q. AU, AH and AS. (20 pts)
Please answer the following question completely and correctly. Please show all work and write neatly. 5. At 298 K and 1 bar pressure, the density of water is 0.9970 gecm, the coefficient of thermal expansion, is 2.07x10 K, and CP.m = 75.3 J•K-'•mol"!. If the temperature of 282 g of water is increased by 38.1 K, calculate w,q, AU, AH and AS.
At 298 K and 1 bar pressure, the density of water is 0.9970 g⋅cm−3, the coefficient of thermal expansion, is 2.07×10−4 K−1, and CP,m=75.3 J⋅K−1⋅mol−1. Part A: If the temperature of 336 g of water is increased by 27.9 K, calculate w Part B: If the temperature of 336 g of water is increased by 27.9 K, calculate q. Part C: If the temperature of 336 g of water is increased by 27.9 K, calculate ΔH. Part D: If the...
6. Four (4.00) moles of a perfect gas at 250.0 K and 1.50 bar pressure undergo a reversible isothermal compression until the pressure becomes 3.00 bar. Calculate: q, w, AU, AH and AS.
The density of K(s) is 0.862 g/cm3. Estimate the change in chemical potential of K(s) if the pressure is increased from 1.00 x 10 Pa to 1.20 x 10 Pa. The molar entropy of C12(9) is 223.07 J/mol-K at 298 K. Estimate the change in the chemical potential of Cl2(9) if the temperature is increased to 450 K.
I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3 is compressed adiabatically in a piston-cylinder device from T1-300 K, pi = 1 bar to p2 = 10 bar at a constant external pressure Pext"- P2 -10 bar. Calculate the final temperature, T2, and W, Q. AU, AH for this process. 2. (20 pts.) Repeat problem 1 for an adiabatic and reversible compression. 3. (20 pts.) A rigid, insulated tank is divided into two...
5) How much heat is required to convert 0.05kg of water at 298 K to super-steam at 423 K. The boiling point of water is 373 K. Cm [H2O (l)] = 75.4 J/(mol. ℃) Cm [H2O (g)] = 33.6 J/(mol. ℃) ΔHvap = 40.67 75.4 J/mol
A 2.0 kg bar of copper is heated at atmospheric pressure so that its temperature increases from 20°C to 50°C. (a) What is the work done on the copper bar by the surrounding atmosphere? SOLUTION Conceptualize This example involves a solid, whereas the preceding two examples involved liquids and gases. For a solid, the change in volume due to thermal expansion is very small. Categorize Because the expanslon takes place at constant atmospheric pressure, we categorize the process as isobaric...
A sample of 1.00 mol ideal gas molecules with Cpm 7/2 R is initially at p 1.00 bar and V 22.44 L and then put thought the following cycle in reversible processes: (a) constant-pressure expansion to twice its initial volume, (b) constant-volume cooling to its initial temperature, (c) isothermal-compression back to 1.00 bar. Calculate q, w, AU, AH, AS for each process and for the whole cycle. (20 pts)
1. The critical temperature and pressure of water are 647.1 K and 217.7 atm. For a sample of steam just below its critical point, 600.0 K and 200.0 atm, a. Calculate the number density. b. Calculate the mean free path. Assume the diameter of a water molecule is 0.15 nm. c. Compare these results to those for air at 1 atm and 298 K. d. Calculate the average speed of water molecules under these conditions, e. Calculate the collision frequency...