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Assume that you have a sample of gas in a cylinder with a moveable piston, as shown in diagram (1). The initial pressure, number of moles, and temperature of the gas are noted on the diagram. Which diagram (2)-(4) most closely represents the result of doubling the pressure and doubling the temperature while keeping the number of moles of gas constant?

Calculate the root–mean–square speed of krypton in m/s at 35°C.  

The reaction A + BC → B + AC is best classified as a(n)

Calculate the pressure (in atm) exerted by 2.75 moles of NO gas in a steel vessel of volume 19.5 L at 75.0°C. 

Three bulbs, two of which contain different gases and one of which is empty, are connected as shown in drawing (a). Which drawing (b) – (d) best represents the system after the stopcocks are opened and the system is allowed to come to equilibrium?

The behavior of leaving one’s house every day at exactly 8:05 in the morning is an example of _____.​

If 2L of liquid ethanol is added to 1.57 L of water, which is the solution?

For this question use the following potential energy diagram.  Where is the transition state?

What is the oxidation number of iron in Fe3(PO4)4 ?

A cannonball was shot from a cannon.  At what point is the potential energy the greatest?