The formula for calculating the experimentally derived specific internal energy at 1 atm for formaldehyde (HCHO) gas is as follows; U (J / mol) = 25.96T + 0.02134 T2 Here is T oC. According to this; a) Calculate the specific internal energies of formaldehyde gas at 0 ° C and 100 ° C. State which reference temperature is based on the experimentally derived equation above? b) The specific internal energy value calculated for 100 ° C is not the absolute (true) value of the specific internal energy of the formaldehyde gas under this condition. Why and what does the calculated value express? c) Calculate the heat (J) required to raise the temperature of 3.0 moles of HCHO at a constant volume from 0 ° C to 100 ° C. Explain clearly all acceptance of the solution and the resolution procedure. d) From the constant volume heat capacity definition derive a formula for fixed volume heat capacity. Then use this formula to calculate the heat (J) required to raise the temperature of 3.0 moles of HCHO (v) from 0 ° C to 100 ° C at a constant volume and compare your result with the result found in c.
The formula for calculating the experimentally derived specific internal energy at 1 atm for formaldehyde (HCHO) gas is as follows;
U (J / mol) = 25.96T + 0.02134 T2
Here is T oC. According to this;
a) Calculate the specific internal energies of formaldehyde gas at 0 ° C and 100 ° C. State which reference temperature is based on the experimentally derived equation above?
b) The specific internal energy value calculated for 100 ° C is not the absolute (true) value of the specific internal energy of the formaldehyde gas under this condition. Why and what does the calculated value express?
c) Calculate the heat (J) required to raise the temperature of 3.0 moles of HCHO at a constant volume from 0 ° C to 100 ° C. Explain clearly all acceptance of the solution and the resolution procedure.
d) From the constant volume heat capacity definition derive a formula for fixed volume heat capacity. Then use this formula to calculate the heat (J) required to raise the temperature of 3.0 moles of HCHO (v) from 0 ° C to 100 ° C at a constant volume and compare your result with the result found in c.
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 7 images
