2. A compressed gas is held inside a canister with a moveable lid. The temperature of the gas is significantly

higher than the air temperature outside the canister. When weight is removed from the lid, the gas

expands to lift it. For this expansion to be as nearly adiabatic as possible, which condition should be met?

Answers

Answer 1

Answer:

Heat supplied should be equal to zero.

Explanation:

Given that a compressed gas is held inside a canister with a moveable lid. The temperature of the gas is significantly higher than the air temperature outside the canister. When weight is removed from the lid, the gas

expands to lift it.

For this expansion to be as nearly adiabatic as possible, one of the conditions that should be met is that there should be no supply of thermal or heat energy to the system.

According to first law of thermodynamics:

Change in internal energy = heat supply + work done by the system

If heat supplied = 0

Then, nothing is constant.

The internal energy = work done by the system.

Therefore, no heat should be supplied to the system.

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D is the answer

Explanation:

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