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An ideal gas that expands isothermally from V1 to V2 does an amount of work equal to kNT ln (V2/V1) . Suppose that a given ideal gas at an initial pressure of 1.35×105 N /m^2expands isothermally at a temperature of 300K. It stops expanding when it reaches a volume of 0.55m^3 at a pressure of 1.01×105 N /m^2. During the process there is no change in internal energy.
a. Calculate the initial volume of the gas.
b. Calculate the work done by the expansion.
c. Calculate the change in entropy of the gas.
(a) Water will flow in the pipe and emerges from the point C. It is considered that water flows from depth equal to the d . Here, the equivalent depth of the water is h = d +12: From equation v = gh , the speed of the water is v= = 4g(oi -012 )
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Imagine holding the above plastic block under water. When released, what is the upward acceleration of the block?
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A specific radioactive isotope has a half-life of 24.2 minutes. How long will it take this isotope to decay to 1/8 of its original amount?
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