Aclosed system, operating at steady state, receives 0.01 kw/k entropy from a reservoir at 1000 k, and 0.01 kw/k entropy from a reservoir at 2000 k. it also rejects entropy through heat to the surroundings, which is at 300 k. hide details (a). determine the heat lost to the surroundings in kw (positive number). kw enter answer as a decimal number (3.14, 5.0, -2.78, 5, for example) (b). determine the rate of entropy generation in the system's universe. kw/k enter answer as a decimal number (3.14, 5.0, -2.78, 5, for example)

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.

Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?