QUESTION 15 Which statement A-D about the first law of thermodynamics (AEsystem-q+w) is not correct? O...
The first law of thermodynamics is usually written as Q=W+?U. You need to look at the signs carefully; some other disciplines (chemistry, for example) may use other signs, which implies other definitions of these quantities. 1-Which physical law underlies the first law of thermodynamics? -conservation of matter -increase in entropy -conservation of energy -conservation of work 2- The quantity Q is the __________ that is added to the system. -heat - work -entropy -internal energy 3-The quantity W in the...
QUESTION 12 According to the first law of thermodynamics, which of the changes, A-D, will always increase the internal energy of a system? (9 = energy transferred, and w = work done) a. q> 0, w < b. None of the changes A-D will always increase the internal energy of a system. OC.q> 0, w > d. q<0,w <0 e. g <0,w>
Energy change is the sum of heat and work: ΔE = q + w. Work is calculated by: w = -PΔV What is the change in energy (in joules) if a reaction absorbs 72.8 J of heat and increases in volume from 0.250L to 0.750L at a constant pressure of 1.168 atm? Please include the correct sign with your numerical result. (Note: Make sure your units are consistent when combining energy terms. The conversion factor you need is: 1 L·atm...
Which of the following is correct regarding the zeroth law of thermodynamics? Select one: O a. it describes how a system changes its state by only focusing on the initial and final state without regard how the final state is achieved. O b. it deals with all modes of thermodynamic equilibrium between bodies. O c. it is about thermal equilibrium among bodies. O d. it is concerned with energy conservation where essentially energy only changes its form. O e. it...
can someone help me with number 17.35 and 17.49? thank you Toe Boyle's law to determine the final - 33 A 220-L cylinder contains 150 atm. If the gas is allowed to opposing pressure of 1.0 atm, how The expansion will stop when the in palision will stop Il equals the external pressure. determine the final volume. nder contains an ideal gas at a pressure of 1f the gas is allowed to expand against a constant pressure of 1.0 atm,...
Please help me solve this urgently ( chemical engineering thermodynamics) A. True or False; answ er False() orTrue(T). For those false, please give your explanation. (6%,4% each) 1. For a pure species of one mole of'a closed system, a reversible phase change wben two phases are in equilibrium, then TSS-ΔΗ Fig. 1 Fiz 2 2. In the figure, there is a cyclic process (the big circle!). for this cyclic process, it must be AS-O. (Fig D 3. If the work...
part a. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of heat. As it expands, it does 79 kJ of work. What is the change in internal energy for the system? Express the energy in kilojoules to two significant figures. part b. When fuel is burned in a cylinder equipped with a piston, the volume expands from 0.235 L to 1.350 L against an external pressure of 1.02 atm...
Question Completion Status QUESTION 7 Which of the following statements about voltage is correct? a. Voltage flows between positive and negative terminals of a battery According to Ohm's Law, increasing the voltage across a resistor results in a decrease in the amount of current flowing through the Voltage is defined as the work performed to move charges in an electric field, per unit charge. s defined as the time rate of change of the magnetic field surrounding a conductor in...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
37. Which of the following pairs does NOT exhibit a direct relationship? A pressure and volume D. all are direct B. pressure and temperatureC. volume and temperature 38. Determine what the pressur is inside of a 15.0L container holding 3.5 moles of H gas at 298.15 . E. 5.7 atm D. 1.4 atm A. 4.8 atm C. 86 atm 8.110 atm 39. If volume and the amount of gas within a container remains constant, what will happen to the pressure...