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6.1 moles of steam at 100 oC are condensed at 100 oC and the resulting water is cooled to 47.1 oC. Calculate the entropy change for this process.
(The molar heat capacity of liquid water is 75.3 J mol-1 K-1, and the molar enthalpy of vaporisation of water is 40.8 kJ mol-1 at 100 oC).
Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What important conclusion was drawn from this experi
Draw a picture of the heat engine in a typical fossil fuel power plant and explain how it works. 1. ___________ is a measure of the electrical potential energy per free ele
Q. When the negative feedback is practical to an amplifier of gain 50 the gain falls to 25. Compute the feedback ratio? Af = A / 1 + Aβ 25 = 50 / 1 + 50 β 1 = 2 / 1 + 50
Stefan-Boltzmann constant; sigma (Stefan, L. Boltzmann) The constant of proportionality exist in the Stefan-Boltzmann law. It is equivalent to 5.6697 x 10 -8 W/m 2 /K 4 .
Satellite Motion A satellite is acted upon through the force of gravity and this force does accelerate it towards the Earth. Within the absence of gravity a satellite would mov
What is Avalanche Breakdown Minority carriers, under reverse biased conditions, flowing through the junction acquires a kinetic energy that increases with increase
Explain how receiver functions in fibre optic communication system. Receiver: The optical signal received must be first converted within digital form and in case analog outp
Classical free electron theory: The free electron theory of metals using classical laws was developed by Dude and Lorentz in the beginning of last century. That time the va
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when dispersion is happening from a prism, the colors are separated out. do each of these colors move with different velocities to keep frequency constant? practically is it possib
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