Q: You hold an inflated balloon over a hot-air vent in
You hold an inflated balloon over a hot-air vent in your house and watch it slowly expand. You then remove it and let it cool back to room temperature. During the expansion, which was larger: the heat...
See AnswerQ: Three moles of an ideal gas are taken around cycle acb shown
Three moles of an ideal gas are taken around cycle acb shown in Fig. P19.42. For this gas, Cp = 29.1 J/mol ∙ K. Process ac is at constant pressure, process ba is at constant volume,...
See AnswerQ: Figure P19.43 shows a pV-diagram for 0.
Figure P19.43 shows a pV-diagram for 0.0040 mol of ideal H2 gas. The temperature of the gas does not change during segment bc. Figure P19.43: (a). What volume does this gas occupy at point c? (b)....
See AnswerQ: (a). One-third of a mole of He gas
(a). One-third of a mole of He gas is taken along the path abc shown in Fig. P19.44. Assume that the gas may be treated as ideal. How much heat is transferred into or out of the gas? (b). If the gas...
See AnswerQ: Starting with 2.50 mol of N2 gas (assumed to
Starting with 2.50 mol of N2 gas (assumed to be ideal) in a cylinder at 1.00 atm and 20.0 0C, a chemist first heats the gas at constant volume, adding 1.36 × 104 J of heat, then continues heating and...
See AnswerQ: Nitrogen gas in an expandable container is cooled from 50.0 0C
Nitrogen gas in an expandable container is cooled from 50.0 0C to 10.0 0C with the pressure held constant at 3.00 × 105 Pa. The total heat liberated by the gas is 2.50 × 104 J. Assume that the gas may...
See AnswerQ: A cylinder with a frictionless, movable piston like that shown in
A cylinder with a frictionless, movable piston like that shown in Fig. 19.5 contains a quantity of helium gas. Initially the gas is at 1.00 × 105 Pa and 300 K and occupies a volume of 1.5...
See AnswerQ: A quantity of air is taken from state a to state b
A quantity of air is taken from state a to state b along a path that is a straight line in the pV diagram (Fig. P19.33). Fig. P19.33: (a). In this process, does the temperature of the gas increase,...
See AnswerQ: One-half mole of an ideal gas is taken from state
One-half mole of an ideal gas is taken from state a to state c as shown in Fig. P19.34. Fig. P19.34: (a). Calculate the final temperature of the gas. (b). Calculate the work done on (or by) the g...
See AnswerQ: Figure P19.35 shows the pV-diagram for a process
Figure P19.35 shows the pV-diagram for a process in which the temperature of the ideal gas remains constant at 85°C. Figure P19.35: (a). How many moles of gas are involved? (b). What vo...
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