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Question: The efficiency of a Carnot engine is 27%. The engine absorbs 795 J of heat per cycle from a hot reservoir at 499 K. Determine the heat expelled per cycle and the temperature of the cold reservoir.
A car travels at 51.0 miles per hour and gets 12.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 5.00 hour trip
Hydrogen gas (2g) is aded to a 10L rigid vessel at 298K containing 4g of He gas. What is the new pressure within the vessel
1. which of the alkyl chlorides listed below undergoes dehydrohalogenation elimination in the presence of strong base
The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 1.000-mg sample remains after 3.50 years?
a 25.00-ml sample of an unknown h3po4 solution is titrated with a 0.100 m naoh solution. the equivalence point is
if a chemical reaction a b ---gtnbsp c d is endothermic what is the sign of deltah for the reaction? would the
lead (II) sulfide (PbS) has a Ksp of 3.0 x 10^-28 . what is the concentration of lead (II) ions in a saturated solution of PbS
Separate the following four compounds using extraction and isolate them in their neutral (as shown) form. Follow the flow chart in Padias (but draw the compounds instead of using the generic "HA," "B," or "N" notation).
if 25.00mL of .2500 M formic acid is titrated with 25.00mL of .2500 M NaOH, what is the pH at the equivalence point? the Ka for formic acid 1.8x10^-4.
If you added the oxidizing agent, chromate, to a solution of phenol, would the phenol be oxidized and would a green Cr3+ solution be formed
The reaction is spontaneous in the forward direction. B. If Q = 1, then DGrxn = G°rxn. C. If G°rxn = 0, the reaction is spontaneous in the reverse direction. D. If G°rxn > 0, the reaction is spontaneous in the reverse direction. E. Under equilibri..
The raw sewage of a wastewater treatment plant has a BOD5 of 230 mg/L and suspended solids of 350 mg/L. Estimate the BOD5 and suspended solids concentrations in the primary effluent (assume typical removal efficiency for both parameters).
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