1. Acetone has a heat capacity at constant volume of 61.50 J/mol K at 310 K...
The constant-pressure molar heat capacity of H2O (s) and H2O (l) is 75.291 J K−1 mol−1 and that of H2O (g) is 33.58 J K−1 mol−1 . Assume that the constant-pressure molar heat capacities are constant over the studied temperature range. Calculate the change in entropy of the system when 15.0 g of ice at −12.0 °C is converted to water vapour at 105.0 °C at a constant pressure of 1 bar!
The constant pressure molar heat capacity of argon is 20.79 J K-1 mol-1 at 298 K. Predict the value of the constant volume molar heat capacity of argon at this temperature.
heat capacity of ?2?(?) 37.7 J/(mol⋅K) heat capacity of ?2?(?) 75.3 J/(mol⋅K) enthalpy of fusion of ?2? 6.01 kJ/mol Two 20.0‑g ice cubes at −14.0 °C are placed into 215 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
The constant volume Molar heat capacity of ethane, C2H6(g) is 44.3 J/mol-K. When 9.0 kJ of heat is removed at constant volume from 90 grams of ethane, the final temperature is 53oC. What was the approximate initial temperature of the C2H6 before the heat is removed. The correct answer is +120oC. Please show work and explain
In a constant-volume process, 200 J of energy is transferred by heat to 0.90 mol of an ideal monatomic gas initially at 298 K. (a) Find the work done on the gas. J (b) Find the increase in internal energy of the gas. J (c) Find its final temperature. K
2 point(s) Specific Heat Capacity The specific heat capacity of lead at 25°C is 1.290x10-1 J/g/K. For a 3.00x 102 g sample of lead, how much will the temperature increase if 3.096x102 ) of energy is put into the system? (Assume that the heat capacity is constant over this temperature range.) 1pts Submit Answer Tries 0/5 What is the molar heat capacity of lead? 1 pts Submit Answer Tries 0/5 e Post Discussion
Tipler6 18.P.058. 12-3 The heat capacity at constant volume of a certain amount of a monatomic gas is 66.9 J/K. "(a) Find the number of moles of the gas. mol Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 2) (b) What is the internal energy of the gas at T 305 K? kJ Submit You currently have 0 submissions for this question. Only 10 submission...
Heat Exchanger V1 = 8.80 L/s acetone n2 mol/s acetone P2 = 1 atm Saturated acetone vapor enters a heat exchanger at a rate of 8.80 L/s at 1 atm, and emerges from the heat exchanger as a saturated liquid at the same pressure. Water at 1 atm enters the heat exchanger at 11.5°C and at a rate of 8.65 mol/s. Assume that the heat exchanger operates adiabatically with respect to its surroundings. Calculate the temperature of exiting water by...
Nitrous oxide (N2O) behaves as an ideal gas and has a heat capacity at constant pressure CP = 38.6 J/K∙mol. 4.2 moles of N2O initially at 298 K are heated at constant pressure until a final temperature of 358 K is reached. (a) Calculate the enthalpy change of N2O during that process. (b) Calculate the heat transfer Q during that process. (c) Calculate the work W performed during that process. (d) Calculate the change in internal energy ΔU during that...
4) The heat capacity for ethanol is 111.46 J/mol/K. If ethanol gains 200. J of heat, by how much will the temperature increase?