Acylinder which is in a horizontal position contains an unknown noble gas at 4.63 × 104 pa and is sealed with a massless piston. the piston is slowly, isobarically moved inward 0.163 m, while 1.95 × 104 j of heat is removed from the gas. if the piston has a radius of 0.272 m, calculate the change in internal energy of the system.

The change in internal energy of the system is -17746.78 J

Explanation:

Given that,

Pressure

Remove heat

Radius = 0.272 m

Distance d = 0.163 m

We need to calculate the internal energy

Using thermodynamics first equation

...(I)

Where, dU = internal energy

Q = heat

W = work done

Put the value of W in equation (I)

Where, W = PdV

Put the value in the equation

Hence, The change in internal energy of the system is -17746.78 J

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)