The rate constant for a reaction is 77 x 10-3 s-1 at 25 c
the rate constant for a reaction is 7.7 x 10^-3 s^-1 at 25 C, and the activation energy is 33.6 kj/mol. what is k at 75C?
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A 1.5 kW heater and a 5 hp induction motor are operated from a 208V, three-phase supply. The motor has a full load efficiency of 80% and a full load power factor of 0.85. What is the motor current and what is the total supply current
Suppose that the microwave radiation has a wavelength of 11.2cm . How many photons are required to heat 295mL of coffee from 25.0C to 62.0C
A stock is expected to return 13% in an economic boom, 10% in a normal economy, and 3% in a recession. Which will lower overall expected rate of return of this stock?
A large reel of paper installed at the end of a paper machinehas a diameter of 1.8m, a length of 5.6m and a moment of inertia of4500 kg-m2. It is driven by a directly coupled,variable-speed DC motor turning at 120 rpm. The paper is kept undera con
the rate constant for a reaction is 7.7 x 10^-3 s^-1 at 25 C, and the activation energy is 33.6 kj/mol. what is k at 75C
The electric motor in a street car develops a power output of80 hp at 1200 rpm as the vehicle moves up a hill at a speed of 30mph. Assume the gearing losses are negligible, calculate: (a) The torque developed by the motor.
A lightning bolt carrying 30,000 A lasts for 50 micro-seconds.If the lightning strikes an airplane flying at 20,000 feet, what is the charge deposited on the plane
An aircraft takes off at 203 km/h after accelerating from rest at 2.14 m/s2. What is the minimum runway length required
What is the difference between the Direct Method and Indirect Method for calculating Cash Flow? Explain how the two methods are reconciled and also provide a brief description of each method.
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
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