how to find ratio of temperature using enthalpy,rather than internal energy?
Why is the heat evolved or absorbed during the reaction associated with enthalpy (H) rather than free energy (G) or internal energy (U)?
CL0_2 Ability to evaluate changes in enthalpy, internal energy and entropy of real gases using generalized charts. Answer the following question: Water vapor at 1000 kPa and 600°C is expanded to 500 kPa and 400°C. Calculate the change in the specific entropy and enthalpy of this water vapor using the departure charts and the property tables.
Specific enthalpy is defined as a. The sum of internal energy, kinetic energy, potential energy, chemical and nuclear energy b. Internal energy minus the product of pressure and volume c. The product of internal energy, pressure and specific volume d. Specific internal energy plus the product of pressure and specific volume
1. What are the similarity and difference between internal energy and enthalpy? 2. Can we measure the total enthalpy of a system directly? Please give your methods, a) if yes, how to measure; b) if no, what methods can be used to measure its change? Question #1: Can we open a refrigerator in our house to cool the room down? And Why? Question #2: Can we use °C unit for temperature here? Question #3: How do you increase the thermal...
If given the internal energy and temperature of a system we find out that the system is a superheated vapor, can we find the specific volume of it?
Write the internal energy, entropy, enthalpy, free energy, and pressure for a system of N independent distinguishable harmonic oscillators.
a. Given that the energy of an ideal gas is a function of temperature only, show how the conclusion can be reached that the enthalpy of an ideal gas is also only a function of temperature. b. Show that for an ideal gas Cp-Cv=R Hint: How much more heat is required to raise the temperature of the gas by 1K if the process is carried out at constant pressure rather than constant volume? Explain.
QUESTION 7: Using the average inventory in the denominator of the inventory turnover ratio rather than using the year-end balance would be especially important for a firm with seasonal sales a firm with a high level of debt a company that has multiple business divisions a service firm
9 Internal energy, enthalpy, Helmholtz ene rgy and Gibbs enthalpy are all measured in Joules a) What is the difference between these forms of energy? Give equations relating them. b) Consider a ladle containing 1 mol of molten lead at 400°C and atmospheric pressure [4] (po 101.3 kPa). The sample is left to cool very slowly to 100°C i) Split the process into three characteristic steps, stating the thermodynamic pro- [3] 13] iv) How does the internal energy of the...
7. The statistical thermodynamics of harmonic oscillations. Write the internal energy, entropy, enthalpy, free energy, and pressure for a system of N independent distinguishable harmonic oscillators.