Workshop mostly gases key

Workshop mostly gases key - Names Workshop mostly gases 1...

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Names_______________________________________________ Workshop – mostly gases 1. Indicate which of the following compounds can hydrogen bond. If the compound can, sketch a possible hydrogen bond. a) CH 3 OH b) CH 3 NH 2 c) CH 3 F 2. When a bond is formed, the reaction reactants are higher energy than the product. For example, in the reaction 2H(g) H 2 (g), the free hydrogen atoms are higher energy than the atoms bound together in the hydrogen molecule. The lost energy is given off as heat. Thinking about bond formation as a process than gives off heat (exothermic is the proper term for a reaction that gives off heat), why are all condensation reactions ( i.e., A(g) A(liq)) exothermic? When you go from gas to liquid, intermolecular interactions form (i.e., weak bonds). Whenever you form bonds you release energy. 3. The equation for an ideal gas is PV=nRT, where R = 0.082 l-atm/mol-K, P is in atm, V liters, and T in degrees Kelvin. This equation works well for most gases. If you plot pressure of a gas vs 1/volume, you get a straight line. For a sample of 0.80 moles of argon gas at 298K, what is the value of the slope for a plot of P vs. 1/V?
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