A thermos bottle with a piston instead of a lid contains a fixed amount of gas. Because it is a thermos bottle, no heat can enter or leave the bottle. The piston is then pushed in, compressing the gas. Does the pressure of the gas increase, decrease, or stay the same? Does the temperature of the gas increase, decrease, or stay the same? Describe the behavior of the molecules of gas during the compression and support your answers to (a) and (b) with an explanation in terms of their behavior. Are there any other properties of the gas that change?

A certain monatomic gas inside a cylinder is at a temperature of 22°C. It takes 278 J of work done on the gas to compress it and increase the temperature to 145°C. If there are originally 3.6 moles of gas inside the cylinder, calculate the quantity of heat flowing into or out of the gas. (Indicate the direction with the sign of your answer. Let "into the gas" be positive, and "out of the gas" be negative.) kJ Additional Materials es Scanned with CamScanner

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Consider the two-sided chamber shown, where the right side has a volume of V and the left side has a volume of 2V. The chamber has a seal which separates the right from the left half. The chamber is sealed and an ideal gas is pumped into the right side at a pressure P and temperature T. The seal between the two sides is then opened. a)If the temperature in the chamber is decreased by a factor of 2 by a refrigeration system while the gas fills the chamber, give an expression for the new pressure P' in terms of the original pressure P.  b)The chamber is then sealed again, trapping 2/3 of the gas molecules in the left side. The temperature of the left side is then doubled by a heater, back to the original temperature T. What is the pressure in the left side of the chamber now, in terms of the original pressure?