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Question- A perfect carnot heat engine absorbs heat q from a hot reservoir at 127 degrees calvin and exhauts heat to a cold reservoir at 27 degrees calvin. How much heat is exhausted to the cold reservoir?
A.Q, B.27Q/127, C. 127Q/27, D.3Q/4, E4Q/3
It is not a question in the book, so I just need the full solution of deriving!
A compound containing xenon and fluorine was prepared by shinning sunlight on a mixture of X2 (0.526 g) and excess F2 gas. If you isolate 0.678 g of the new compound, what is the empirical formula
CO2 Dissociation by means of electronic excitation. Using Fig. 5-6, calculate the decrease in energy thresh- old of the CO2 dissociation through electronic excitation related to preliminary vibrational excitation
What spectroscopic method would you use to unambiguously distinguish between the following isomeric acids. Give an explanation of how the spectra are interpreted to give you an assignment for each compound.
which of the following is always negative when a spontaneous process occurs. delta S system, delta S surroundings, delta S universe, delta G system, or none of the above?
The temperature of the calorimeter rose from 25C to 33.73C. If the heat capacity of the calorimeter was 9,630 J/C, what is the value of delta H for the combustion reaction in KJ/mol.
what is the energy of a single UV photon and a mole of UV photons having a wavelength of 25 nm?
It is found for the reaction A + B > C that doubling the concentration of either A or B while keeping the other one constant quadruples the reaction rate. Write a rate law for the reaction
How much heat (in kj) is required to warm 13.0 C of ice, initially at -15.0 C, to steam at 113.0 C ? The heat capacity of ice is 2.09 J/gC and that of steam is 2.01 J/gC
Suppose a researcher were doing work on mercury compounds and its use couldn't be avoided. Find out a) acute health effects involved with its use and b) the recommended waste disposal method for this mercury compound.
What fraction of the acid in the 50.0 mL sample would be extracted, again at pH 3.42, using three 10.0 mL portions of chloroform. If the pH of the solution was changed to 6.00, what fraction would be extracted using 30.0 mL of chloroform with a 50...
Explain a compound made up of C, H, and Cl contains 55.0 percent Cl by mass. If 9.00 g of the compound contain 4.19 * 10^23 H atoms, what is the empirical formula of the compound
how much heat is transferred when 400 grams of mercury (Hg) is vaporized? specific heat (c) = 0.14J/g C, heat of fusion = 2.29 kJ/mol, heat of vaporization = 59.1 kJ/mol.
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