Calculating Work Done on a Gas Under Constant Pressure: 4.0L to 2.0L at 850 Pa

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The work done on a gas during compression at constant pressure can be calculated using the formula W = -P(Change in volume). In this case, the gas is compressed from 4.0L to 2.0L under a pressure of 850 Pa. The change in volume is -2.0L, leading to a calculation of W = -850 Pa * (-2.0L), which results in a positive value for work done on the gas. The confusion arises from the sign convention, as work done on the gas is considered positive, while work done by the gas is negative. Accurate unit conversion and understanding of the sign convention are crucial for correct calculations.
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Homework Statement



Question: The volume of an ideal gas is compressed from 4.0L to 2.0L under a constant pressure of 850 Pa. How much work is done on the gas?

Homework Equations



W=-P(Change in volume)

The Attempt at a Solution



I keep coming out with -1.7 which I know is incorrect.
 
Physics news on Phys.org
1.Don't forget the unit of work.
2.Do you think that the work done on the gas is negative or could it be positive?
 

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