The air within a piston equipped with a cylinder absorbs 565 j of heat and expands from an initial volume of 0.10 l to a final volume of 0.85 l against an external pressure of 1.0 atm. what is the change in internal energy of the air within the piston

489 J

Explanation:

According to the first law of thermodynamics:-

Where,

U is the internal energy

q is the heat

w is the work done

From the question,

q = + 565 J  (+ sign as the heat is being absorbed)

The expression for the calculation of work done is shown below as:

Where, P is the pressure

is the change in volume

From the question,

= 0.85 - 0.10 L = 0.75 L

P = 1.0 atm

Also, 1 atmL = 101.3 J

So,

(work is done by the system)

So,

c.is a substance that requires a small amount of energy per gram to raise its temperature; has strong cohesive forces between molecules.

explanation:

a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.