Question

In the following problem please answer question C The temperature dependent Cp of carbon dioxide is...

In the following problem please answer question C

The temperature dependent Cp of carbon dioxide is experimentally determined to be Cp = a + bT + c/T2 where a, b, and c are constants and Cp is given in units of J/mol·K

a. Derive an expression for the amount of heat required to raise the temperature CO2 from T1 to T2 as a function of a, b, and c.

b. Calculate the heat required to raise the temperature of 1 kg CO2 from 0 to 100 °C at constant pressure, given that the empirical constants are a = 44.22 J/mol·K, b = 0.00879 J/mol·K2, and c = −86,200 J·K/mol.

c. Compare the value from part b. with the result you would get if you assumed that the constant pressure heat capacity was constant, Cp = 40.0 J/mol·K.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A cylinder contains 0.200 mol of carbon dioxide (CO2) gas at a temperature of 30.0 ∘C....
A cylinder contains 0.200 mol of carbon dioxide (CO2) gas at a temperature of 30.0 ∘C. The cylinder is provided with a frictionless piston, which maintains a constant pressure of 1.00 atm on the gas. The cylinder is placed on a hot plate and a 920 J of heat flows into the gas, thereby raising its temperature to 124 ∘C. Assume that the CO2 may be treated as an ideal gas. What is the change in internal energy of the...
Carbon dioxide is an important greenhouse gas. Calculate the enthalpy change for a 66.5g sample of...
Carbon dioxide is an important greenhouse gas. Calculate the enthalpy change for a 66.5g sample of CO2 heated from 0.6 C to 50.0 C at constant pressure assuming (a) that Cp,m is not a f(T) and (b) where Cp,m is a f(T). Cp,m(CO2) = 27.11 J/molK at 25 C and a = 44.22 J/mol K, b=0.00879 J/molK^2 and c=-8.62x10^5 K/mol. How does this energy change compare to the average intermolecular force?
A cylinder contains carbon dioxide. Carbon dioxide temperature in the cylinder increases from 300 K to...
A cylinder contains carbon dioxide. Carbon dioxide temperature in the cylinder increases from 300 K to 700 K under constant pressure of 240 kPa. Initial volume of carbon dioxide is 0.07 m3. Determine the required heat in this process in unit of kJ. Round the result to two decimal places.
Briefly define (one sentence each) these phrases: 1. adiabatic process 2.isothermal process Calculate the heat required...
Briefly define (one sentence each) these phrases: 1. adiabatic process 2.isothermal process Calculate the heat required to raise the temperature of 1.450 mol of lead from 20 °C to 357 °C at constant pressure given that for lead, C p.m  /J K–1 mol–1 = a + bT + c/T2 where a = 22.13, b= 11.72 ´ 10–3 K–1, c = 0.96 x 105 K2 and T is the absolute (kelvin) temperature.
1. The standard enthalpy of formation of phenol is -165.0 kJ/mol. Calculate its standard enthalpy of...
1. The standard enthalpy of formation of phenol is -165.0 kJ/mol. Calculate its standard enthalpy of combustion. [Express your answer in units of kilojoules per mole, kJ/mol] C6H5OH + 7O2 --> 6 CO2 + 3H2O ΔHc = 6ΔHf(CO2) + 3ΔHf(H2O) - ΔHf(C6H5OH) - 7ΔHf(O2) 2. Calculate the work done on a closed system consisting of 50.0 grams of argon, assumed ideal, when it expands isothermally and reversibly from a volume of 5.00 L to a volume of 10.00 L at...
Liquid carbon dioxide at a flow rate of 100 000 kg/hr is to be heated from...
Liquid carbon dioxide at a flow rate of 100 000 kg/hr is to be heated from 0°C to 20°C in a 1-2 shell and tube heat exchanger. Water is available at a flow rate of 113 000 kg/hr and a temperature of 40°C. A 25-in. (635 mm)-ID 1-2 shell and tube exchanger having 3/4-in., 10 BWG tubes laid out on a 1-in. triangular pitch is available. The tubes are 2 m long and the exchanger contains three baffles. Determine expected...
Carbon dioxide at 90 C and atmospheric pressure flows over a square horizontal plate at 60...
Carbon dioxide at 90 C and atmospheric pressure flows over a square horizontal plate at 60 m/s. The side lengths are 60 cm, and the plate is maintained at a constant uniform temperature of 10 C. (a) What is the total heat transfer? (b) What is the boundary layer thickness at the center of the plate?
1) The following information is given for n-pentane at 1 atm: = 36.20°C (36.20°C) =  J/g =...
1) The following information is given for n-pentane at 1 atm: = 36.20°C (36.20°C) =  J/g = –129.70°C (–129.70°C) =  J/g Specific heat gas = 1.650 J/g °C Specific heat liquid = 2.280 J/g °C A 40.00 g sample of liquid n-pentane is initially at –27.30°C. If the sample is heated at constant pressure ( = 1 atm), _______kJ of energy are needed to raise the temperature of the sample to 53.90°C. 2) The following information is given for magnesium at 1...
ΔH = CpΔT ΔS = Cp ln T2/T1 ΔG = ΔH − TΔS 1. Consider a...
ΔH = CpΔT ΔS = Cp ln T2/T1 ΔG = ΔH − TΔS 1. Consider a protein that unfolds at a transition temperature of 70.0ºC at a pressure of 1 bar, and the heat of unfolding (qu) is +638 kJ mol-1. a. Calculate ΔuH, ΔuS, ΔuG and for the transition from folded to unfolded protein at 70.0ºC at 1 bar knowing that ΔCp = −8.37 kJ K-1 mol-1 and is independent of temperature. b. Repeat the calculations from part (a)...
The following information is given for cobalt at 1 atm: boiling point = 3.097E3°C Hvap(3.097E3°C) =...
The following information is given for cobalt at 1 atm: boiling point = 3.097E3°C Hvap(3.097E3°C) = 6.603E3 J/g melting point = 1.495E3°C Hfus(1.495E3°C) = 262.7 J/g specific heat solid = 0.4180 J/g ⋅ °C specific heat liquid = 0.6860 J/g ⋅ °C A 38.00 g sample of solid cobalt is initially at 1.467E3°C. If the sample is heated at constant pressure (P = 1 atm), __ kJ of heat are needed to raise the temperature of the sample to 1.963E3°C.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT