Ans: The correct answer is "d. Specific internal energy plus the product of pressure and specific volume"
Specific enthalpy = u + P*ν
u is the specific internal energy
P is the pressure of the system
ν is the specific volume
Specific enthalpy is defined as a. The sum of internal energy, kinetic energy, potential energy, chemical...
1) The internal energy of a system A) is the sum of the kinetic energy of all of its components B) is the sum of the rotational, vibrational, and translational energies of all of its components C) refers only to the energies of the nuclei of the atoms of the component molecules D) is the sum of the potential and kinetic energies of the components E) none of the above Answer:
The change in enthalpy is the change in heat energy of a reaction and is calculated by (Hint: Hess' Law): a)Sum of product enthalpies minus the sum of reactant enthalpies b)Sum of product enthalpies times the sum of reactant enthalpies c)Sum of reactant enthalpies minus the sum of product enthalpies d)Sum of reactant enthalpies plus the sum of product enthalpies
What is Total energy? Kinetic energy + Potential energy Chemical energy + Heat energy Potential energy + Heat energy Kinetic energy + Chemical energy
What is Total energy? Kinetic energy + Potential energy Chemical energy + Heat energy Potential energy + Heat energy Kinetic energy + Chemical energy
1) Classify the following as kinetic or potential energy: Answer: Answer: A) energy stored by position B) energy in nuclear particles C) energy of a moving object D) energy in chemical bonds Answer: Answer: E) energy of a fish swimming Answer: F) energy stored in methane Answer: Answer: G) energy of a flowing river Answer: H) energy stored in glucose 1 energy of an airplane in flight Answer:
45. What is the matemathical relationship between potential energy (PE) and kinetic energy (KE)? a. They are directly proportional b. They are inversely proportional c. Their sum is equal to the total internal energy of the system (E) d. Both B and C are correct e. None of the above 46. What is a consequence of the 1 Law of Thermodynamics? a. The energy of a system can never change b. The energy of the surroundings can never change c....
Change in enthalpy is best defined as (please Explain) A) the sum of heat absorbed and work done. B) the heat transferred at constant pressure. C) the pressure change at constant temperature. D) the measure of disorder in a system. E) none of the above
rature, specific volume, enthalpy, internal energy and entropy of ammonia Pa and 25% quality. (Some properties of ammonia are given in the table below.) at 0.120 M (15 marks) Properties of Saturated Ammonia PressureTemp. (kPa) C) Enthalpy (kJ/kg) Specific Vol. Entropy hs he 22.3 44.7 67.2 00015 1.22 0.00150.96 0.772 0.096 0.205 0.281 -35 -30 -25 9 1405.6 1413.0 1200.0015 5.702
Explain the differences between kinetic energy and thermal energy. What is internal energy of a chemical reaction? Explain clearly using an equation
The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess’s law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize. The average propane cylinder for a residential grill holds approximately 18 kg...