Please show all work and explain your answer. Thank you! Now you transfer heat e

Question

Please show all work and explain your answer. Thank you!

Now you transfer heat energy to the gas in the cylinder, but hold the piston so that it cannot move. Is work done on or by the gas? What happens to the internal energy of the gas? What happens to the temperature of the gas? After holding the piston in Question 10 for a short while, you let it go. What happens to the piston? Is work done on or by the gas? What happens to the internal energy of the gas? What happens to the temperature of the gas?

Explanation / Answer

Here ,

10.

when the piston is fixed , the volume of gas will be constant

the work done by the or on the gas is Zero.

as heat is transferred , all the heat is converted to internal energy of gas , hence, the internal energy of the gas will increase.

as internal energy is directly proporational to temperature , increase in internal energy will result in the increase of temperature of the gas.

11.

when you let go the piston ,

the gas will push the piston away and the gas will expand due to increased pressure inside the gas untill internal pressure is equal to external pressure.work is done by the gas on the surrouding as the volume of gas is increasing.

as no heat is added to gas , the work done by gas is positive.the internal energy of gas will decrease.

as internal energy is directly proporational to temperature , decrease in internal energy will result in the decrease of temperature of the gas.

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