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Calculate H for the reaction: 2K(s)+2H2O(l) yields 2KOH(aq)+ H2(g) A 5.00-g chunk of potassium is dropped into 1.00 kg water at 24.0C. What is the final temperature of the water after the preceding reaction occurs? Assume that all the heat is used to raise the temperature of the water. (Never run this reaction. It is very dangerous; it bursts into flame!)
Determine the sampling rate if the signal is sampled at a rate 50% higher than the Nyquist rate.
A rectangular loop is placed in the field of an in- finitely long straight conductor carrying a current of I amperes, as shown in Figure P12.1.2. Find an expression for the total flux linking the loop, assuming a medium of permeability µ.
The characteristics of a sigmoidal curve are dependent upon the constants and the stimulus. Change the constants and observe the effects. What range of values leads to a curve that appears to be hyperbolic?
Determine the angular velocity and angular acceleration of the blade at this instant
The ideal-gas heat capacities of ethylene and nitrogen are 43 J/mol K and 29 J/mol K, respectively, and may be assumed independent of temperature.
What is the armature current corresponding to the maximum torque?
Determine the flow rate of the refrigerant, the amount of work in the compressors, and the heat loads in all heat exchangers.
Determine the current I through the 10-Ω resistor of the circuit of Figure P2.2.5 by employing the node-voltage method. Check by mesh analysis.
The length of the pipe line =305 m. The efficiency of the pump is 40 % and includes the losses at the entrance and exit of the pump. if the flow rate of the water is to be maintained at 3.15*10^-3 m3/s. and the water temperature at 16 oc . ,estima..
Discuss the characteristics of this microenvironment.
What is the optimum practical shape for an above-ground dwelling to minimize the heat losses through the building fabric? When is (or was) this optimum shape used? Why is this optimum shape seldom used in richer societies?
Estimate the maximum steam pressure that can be used safely in this pipe.
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