10 points. 1. The molar heat capacity of iridium is given by Cam 24.80 +0.00597"T Calculate the change in entropy i...
1. The molar heat capacity of iridium is given by | Co,m=24.80 + 0.00597* Calculate the change in entropy if 75.0 grams of iridium is heated from 0°C to 1500 °C.
1. a) Calculate the change in entropy (AS) when one mole of diamond is heated from a temperature of 0 K to 400 K at a constant pressure of 1 bar. The temperature-dependent heat capacity of diamond is C 2.9x10 T J/(mol K), where T is the absolute temperature in K. b) Given that the entropy of diamond is zero at 0 K, calculate its absolute molar entropy (S) at 400 K from the above result.
The standard molar entropy of NHz is 192.45 JK+mol-1 at 298K, and its heat capacity is given by the equation Com= a +bT +c/T2 with the coefficients given in the table below. Calculate the standard molar entropy of NH3 at 100 °C. Please explain as much as possible. Why did you use the equation? Or what conditions did you see from the question? etc. Table 1: Temperature variation of molar heat capacities, Cp /K-mol-?) = a +bT + c/T2 b/(10-3K-1)...
The standard molar entropy of NH3 is 192.45 J K'mol ' at 298 K, and its heat capacity is given by the equation Cp.m = a + bT + c/T2 with the coefficients given in table below. Calculate the standard molar entropy of NH3 at a) 100 °C. (10 pts) Table 1: Temperature variation of molar heat capacities, C /OK-Imol-1) = a +bT + c/T2 c b/(10-K) I 25.1 /(10% K) -155 NH3 29.75
- Laticise E3B.7(a). P3B.3 The molar heat capacity of trichloromethane (chloroform, CHCI) range 240 K to 330 K is given by Cpm/(JKmol"!) = 91.47 +7.5 x 10 Calculate the change in molar entropy when CHCl, is heated from 273 K to 300 K the range 200 K to 400 K is given by
Calculate the change in entropy (in J/K) that occurs when a sample containing 2.00 moles of water is heated from 80.00 °C to 110.0 °C at 1 atm pressure. Molar Heat Capacity H20(I) = 75.3 JK' molt H20(9) = 36.4 JK' moi Enthalpy of Vaporization at 100 °C = 40.7 kJ moi? -1 Answer:
Calculate the change in entropy (in J/K) that occurs when a sample containing 2.00 moles of water is heated from 10.00°C to 300.0 °C at 1 atm pressure. Molar Heat Capacity H2O(1) = 75.3 JK' moi? H2O(g) = 36.4 JK' mol Enthalpy of Vaporization at 100 °C = 40.7 kJ mol .-1 -1 Answer:
Physical Chemistry Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol K1 and 31.75 J mol K, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 J g1. The molar mass of aluminum is...
a) Show that the molar entropy change, Asm, is given by ASm = Cy,m In + Rin" if one mole of an ideal gas is taken from T,,V, to T2, V, assuming that Cv.m is independent of temperature. b) Calculate the value of the molar entropy change, Asm, if one mole of N2(g) is expanded from 20.0 dm² at 273 K to 300 dm at 400 K. (Cp.m = 29.4 JK-Imol-?)
Calculate the change in entropy ΔS for 5.2 moles of an ideal gas when its thermodynamic state changes from p1 = 1.50 atm and T1 = 400.0 K to p2 = 3.00 atm and T2 = 600.0 K. The molar heat capacity of the gas at constant volume is CV,m = (7/2) R, and is independent of the temperature.