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Define isothermal process
For isothermal process temperature remains constant i.e. Δu = 0.
Thus according to first law of thermodynamics ΔQ =Δw Heat supplied to the system is used up completely by the system in doing work on environment.
Calculate the heat required to melt 316.7kg of potassium metal at 336 K. The enthalpy of fusion of potassium is 2.35 kJ mol -1 .
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Define Atmospheric Energy - thermodynamics? The mass of the Earth's atmosphere, p(z), varies with height z above the Earth's surface. Assume that the "thickness" of the atmosp
A ball leaves a girl's hand with an upward velocity of 6 meters per second. What is the maximum height of the ball above the girl's hand? Ans: A ball leaves a girl's hand w
What are semiconductors? Give an example for n-type semiconductors. Semiconductors are materials having electrical conductivity among that of insulators and conductors. This i
Give reasons for the following (i) Long distance radio broadcasts use short-wave bands. (ii) The small ozone layer on top of the stratosphere is crucial for human survival.
Gaia hypothesis (J. Lovelock, 1969): The idea that as a whole Earth should be regarded as a living organism & that biological procedure stabilize the environment.
What occures to Internal Energy of a system ,if work is done (a) on the system, (b) by the system.
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The voltage across the terminals of a cell when it is supplying current to external resistance is known as potential difference or final voltage. Potential energy dissimilarity is
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