Question

In: Other

Problem 8.4 Calculating Heat Capacities Use heat capacity data to calculate the following quantities. Liquid Toluene...

Problem 8.4 Calculating Heat Capacities

Use heat capacity data to calculate the following quantities.

Liquid Toluene


	Correct.

The heat capacity (C_p) of liquid toluene at 70.0°C: 0.1714 kJ/(mol °C)

Toluene Vapor


	Correct.

The heat capacity at constant pressure of toluene vapor at 70.0°C: 0.1194 kJ/(mol °C)

Solid Carbon


	Check that you are using the right form for the heat capacity expression.

The heat capacity at constant pressure of solid carbon at 70.0°C: _____________x 10^–3 kJ/(mol K)

Change in Enthalpy for Toluene Vapor


	Check that you are using the right form for the heat capacity expression. Remember that you must integrate over the temperature range.

The ΔH∧(kJ/mol) of toluene vapor going from 70.0°C to 360.0°C: ___________ kJ/mol

Change in Enthalpy for Solid Calcium Carbonate

The ΔH∧(kJ/mol) of solid calcium carbonate going from 70.0°C to 360.0°C: ___________ kJ/mol

Expert Solution

Amanda K answered 6 months ago

Use the data in Appendix B in the textbook to calculate the following quantities. (College Chemistry...

Use the data in Appendix B in the textbook to calculate the following quantities. (College Chemistry II) Part A- N2(g)+2H2(g)?N2H4(l) (Express your answer using one decimal place.) 1. ?H? for the following reaction? 2. ?S? for this reaction? 3. From the values of ?H? and ?S?, calculate ?G? at 25 ?C? Part B- CH3OH(l)+O2(g)?HCO2H(l)+H2O(l) (Express your answer using one decimal place.) 1. ?H? for the following reaction? 2. ?S? for this reaction? 3. From the values of ?H? and ?S?,...

Calculate the standard entropy of vaporization of ammonia at 210.0K, given that the molar heat capacities...

Calculate the standard entropy of vaporization of ammonia at 210.0K, given that the molar heat capacities at constant pressure of liquid ammonia and ammonia vapor are 80.8 J.K-1.mol-1 and 35.1 J.K-1mol-1, respectively, in this range.

The heat capacity, Cp, of liquid carbon disulfide is a relatively constant 78J(molK). However, the heat...

The heat capacity, Cp, of liquid carbon disulfide is a relatively constant 78J(molK). However, the heat capacity of solid carbon disulfide varies greatly with temperature. From 99K to its melting point at 161K, the heat capacity of solid carbon disulfide increases linearly from 44 J/(molK) to 57 J/(molK). The enthalpy of fusion of carbon disulfide is 4390 J/mol. The absolute entropy of liquid carbon disulfide at 298K is 151 K/(molK). Estimate the absolute entropy of carbon disulfide at 99K.

Calculate the heat capacity of 2.00 L of water, given the specific heat of water is...

Calculate the heat capacity of 2.00 L of water, given the specific heat of water is 4.187 kJ kg-1 K-1

For a liquid mixture of benzene and toluene of equal composition by mass, perform the following:...

For a liquid mixture of benzene and toluene of equal composition by mass, perform the following: a) Using Raoult’s law , calculate the total pressure and mole fractions of each substance in a gas phase containing only benzene and toluene vapor in equilibrium with the given liquid mixture at 60oC. b) Prove that the bubble point of the liquid mixture at pressure, P = 0.715 atm is 80OC c) Briefly describe what would happen if the mixture were heated slowly,...

Prepare a graph of heat capacities for metals versus their atomic weights. Combine the data in Table 6.1 and the values in the following table

Prepare a graph of heat capacities for metals versus their atomic weights. Combine the data in Table 6.1 and the values in the following table. What is the relationship between specific heat capacity and atomic weight? Use this relationship to predict the specific heat capacity of platinum. The specific heat capacity for platinum is given in the literature as 0.133 J/g · K. How good is the agreement between the predicted and actual values?

The heat capacity, CP, of liquid carbon disulfide is a relatively constant 78 J/(mol·K). However, the...

The heat capacity, CP, of liquid carbon disulfide is a relatively constant 78 J/(mol·K). However, the heat capacity of solid carbon disulfide varies greatly with temperature. From 75 K to its melting point at 161 K, the heat capacity of solid carbon disulfide increases linearly from 39 J/(mol·K) to 57 J/(mol·K). The enthalpy of fusion of carbon disulfude is ΔHfus = 4390 J/mol. The absolute entropy of liquid carbon disulfide at 298 K is S = 151 J/(mol·K). Estimate the...

The following are heat producing of coal capacities fro two mines( in millions of calories per...

The following are heat producing of coal capacities fro two mines( in millions of calories per tonne) Mine A: 8500, 8330, 8480, 7960, 8030 Mine B: 7710, 7890, 7920, 8270, 7860 Assume that the data constitute independent random samples from normal distributions with equal variances. Test at the 0.01 level of significance whether the means of the heat-producing capacities of coal from two mines is different.

Answer the following questions involving specific heat capacities : a ) How much energy is required...

Answer the following questions involving specific heat capacities : a ) How much energy is required to change 42 g ice cube from ice at -11°C to steam at 111°C? b ) Liquid nitrogen, which has a boiling point of 77 K, is commonly used to cool substances to low temperatures. How much energy must be removed from 1.0 kg of gaseous nitrogen at 77 K for it to completely liquefy? c ) How much energy is needed to melt...

Calculate the magnitude of the heat transfer (kJ) required to cool 65.0 liters of a liquid...

Calculate the magnitude of the heat transfer (kJ) required to cool 65.0 liters of a liquid mixture containing 70.0 wt% acetone and 30.0% 2-methyl-1-pentanol (C6H14O) from 45.0°C to 20.0°C The specific gravity of 2-methyl-1-pentanol is about 0.826. The true heat capacity of 2-methyl-1-pentanol is about 248.0 J/(mol °C). Estimate the required heat transfer using Kopp's rule to estimate the heat capacities of both acetone and 2-methyl-1-pentanol. ? kJ Estimate the required heat transfer using the true heat capacities. ? kJ