(a)
Interpretation:
The force in newtons exerted on the gas by the atmosphere, the piston and the weight should be determined assuming there is no friction between piston and cylinder.
Concept Introduction:
The force exerted on the gas by the atmosphere can be calculated as follows:
Here, P is pressure and A is area of cross-section
Also, force exerted by an object is as follows:
Here, m is mass of object and a is acceleration.
(b)
Interpretation:
The pressure of the gas should be calculated in kPa.
Concept Introduction:
The pressure of the gas can be calculated as follows:
Here, F is force and A is area of cross-section.
(c)
Interpretation:
The work done by the gas in kJ and the potential energy change of the piston and weight should be determined.
Concept Introduction:
The work done by gas can be calculated as follows:
Here, F is force and
Potential energy can be calculated as follows:
Here, m is mass, g is acceleration due to gravity and
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Chapter 1 Solutions
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