Questions from College Physics


Q: Sketch a PV diagram and find the work done by the gas

Sketch a PV diagram and find the work done by the gas during the following stages. (a) A gas is expanded from a volume of 1.0 L to 3.0 L at a constant pressure of 3.0 atm. (b) The gas is then cooled a...

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Q: Gas in a container is at a pressure of 1.5

Gas in a container is at a pressure of 1.5 atm and a volume of 4.0 m3. What is the work done on the gas (a) If it expands at constant pressure to twice its initial volume, and (b) If it is compressed...

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Q: There is an old admonition given to experimenters to “keep one

There is an old admonition given to experimenters to “keep one hand in the pocket” when working around high voltages. Why is this warning a good idea?

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Q: Find the numeric value of the work done on the gas in

Find the numeric value of the work done on the gas in (a) Figure P12.4a and (b) Figure P12.4b. Figure P12.4:

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Q: A gas expands from I to F along the three paths indicated

A gas expands from I to F along the three paths indicated in Figure P12.5. Calculate the work done on the gas along paths (a) IAF, (b) IF, and (c) IBF. Figure P12.5:

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Q: A gas follows the PV diagram in Figure P12.6.

A gas follows the PV diagram in Figure P12.6. Find the work done on the gas along the paths (a) AB, (b) BC, (c) CD, (d) DA, and (e) ABCDA. Figure P12.6:

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Q: A sample of helium behaves as an ideal gas as it is

A sample of helium behaves as an ideal gas as it is heated at constant pressure from 273 K to 373 K. If 20.0 J of work is done by the gas during this process, what is the mass of helium present?

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Q: (a) Find the work done by an ideal gas as

(a) Find the work done by an ideal gas as it expands from point A to point B along the path shown in Figure P12.8. (b) How much work is done by the gas if it compressed from B to A along the same path...

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Q: One mole of an ideal gas initially at a temperature of Ti

One mole of an ideal gas initially at a temperature of Ti = 0°C undergoes an expansion at a constant pressure of 1.00 atm to four times its original volume. (a) Calculate the new temperature Tf of the...

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Q: A chemical reaction transfers 1250 J of thermal energy into an ideal

A chemical reaction transfers 1250 J of thermal energy into an ideal gas while the system expands by 2.00 x 10-2 m3 at a constant pressure of 1.50 x 105 Pa. Find the change in the internal energy.

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