The equation for calculating the work performed when a piston in a cylinder expands against a  constant pressure is w = −P ∙ΔV, where ΔV is the change in volume inside the cylinder. How much  work is performed (in joules) when a piston pushes against a constant pressure of 1.21 atm, resulting  in a volume change of 2.56 mL? (Hint: First determine the units that must be used for each term in the  equation.)(101,325 Pa = 1 atm)

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Chapter1: Units, Trigonometry. And Vectors
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The equation for calculating the work performed when a piston in a cylinder expands against a 
constant pressure is w = −P ∙ΔV, where ΔV is the change in volume inside the cylinder. How much 
work is performed (in joules) when a piston pushes against a constant pressure of 1.21 atm, resulting 
in a volume change of 2.56 mL? (Hint: First determine the units that must be used for each term in the 
equation.)(101,325 Pa = 1 atm)

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