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1.00 mole of an ideal gas (Cv,m=12.47 J mol-1 K-1) is initially at 300 K and in 10 L and is expanded to 20 L in two different ways described below. Compute w, q, deltaU, delta S, and delta S total for both of these two processes.
a) Isothermally and reversibly
b) Isothermally against a constant external pressure of 0.5 atmospheres.
Analysis of an unknown substance showed that it has a moderate melting point and is a good conductor of heat and electricity in the solid phase. Which of the following substance would have those characteristics
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The unknown compound assigned to a student was an aldehyde, but about half of the sample distilled around 65, and the rest of it distilled near 155?. (a) What is the name of the aldehyde. (b) What else was in the sample and why. Write a balanced e..
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In acidic aqueous solution, water can be reduced to H2 gas, but the H+ ions can be reduced more easity. What is the voltage of the hydrogen ion reduction half-reaction, under standard conditions
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