Estimate the molar entropy of potassium chloride at 5 Kelvin given that its molar heat capacity at that temperature is 1.2 microjoules per Kelvin x Mole.
The answer is 4.0x10^-4 Joules per Kelvin Mole but I don't know how they got that answer.
Estimate the molar entropy of potassium chloride at 5 Kelvin given that its molar heat capacity...
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
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)...
10 points. 1. The molar heat capacity of iridium is given by Cam 24.80 +0.00597"T Calculate the change in entropy if 75.0 grams of iridium is heated from O'C to 1500°C. 2. The United State
Specific Heat 4 of 29 > Review Constants Periodic Table Part A The heat capacity of an object indicates how much energy that object can absorb for a given increase in that object's temperature. In a system in which toobjects of different temperatures come into contact with one another the warmer object will cool and the cooler object w a rm up until the system is at a single equilibrium temperature. Note the difforence between the terms molar heat capacity,...
V. HEAT CAPACITY OF PLATINUM The usual expression for the Debye temperature involves the speed of sound, v. However, this result is too simplistic because there are two types of waves in the solid: transverse waves which travel at a speed of v, and longitudinal waves, which travel at a speed of vi. In general these speeds are not the same. a) [2 marks] Derive a new expression for the Debye temperature using the identity that the aver- age speed...
3,1 moles of an ideal gas with a molar heat capacity at constant volume of 5,1 cal/(mol∙K) and a molar heat capacity at constant pressure of 7,7 cal/(mol∙K) starts at 317,6 K and is heated at constant pressure to 335,9 K, then cooled at constant volume to its original temperature. How much heat (cal) flows into the gas during this two-step process? Answer in two decimal places.
7. For CO2 near room temperature: Cy - molar heat capacity at constant volume = 28.5 J/(mole K) Other useful information gas constant R 8.314 J/(mole K) Boltzmann's constant k - 1.38 x 10-23 J/K a) The internal energy of a sample of N molecules of CO2 near room temperature can be written U = a + bNKT where a and b are constants. What is the value of b? (15 points) b) The Equipartition Theorem allots energy VkT to...
Ch 19 HW Relationships between Molar Heat Capacities 9 of 23 Constants The amount of heat needed to raise the temperature of 1 mole of a substance by one Celsius degree (or, equivalently, one kelvin) is called the molar heat capacity of the system, denoted by the letter C. If a small amount of heat dQ is put into n moles of a substance, and the resulting change in temperature for the system is dT, then Part A Consider an...
please help me answer #2 a, b, c and d
measured value of the heat capacity be too high or too low? Explain. 2- A particular metallic element, M, has a heat capacity of 0.361.gº''K 1. It forms an oxide that contains 2.90 g of M per gram of oxygen. a) Using the law of Dulong and Petit (Cp x M = 25 J. mol-1.K-1), estimate the molar mass of the metal M. g/mol b) From the composition of the...
Please help me solve for delta H, I can't get it.
Thank you!
Part A Constants | Periodic Table The molar heat capacity Cp,m of SO2 (g) is described by the following equation over the range 300 K