1 of 20 Sapling Learning Which of the following is the best description of the f

Question

1 of 20 Sapling Learning Which of the following is the best description of the first law of thermodynamics? The or out of the system as work, heat, or both. in thermal energy of a system is equal to the energy transferred into O Thermal energy flows from the colder object to the warmer object O unless acted upon by an unbalanced force. o The entropy of an isolated system increases until the system reaches thermal An object at rest will remain at rest and an object in motion will remain in motion equilibrium Check Answer terms of MacBook Air F1 F2 F3 F4 F5 F6 F7

Explanation / Answer

According to First law of Thermodynamics:

U = q + w

where,

U: Internal energy of a system

q: Heat supplied

w: Work done

So according to first law change in internal energy of a system is always equal to heat supplied to the system and work done by the system.

Hence, the correct discription of First law of Thermodynamics is FIRST statement, i.e,

The change in internal energy of a system is equal to the energy transferred into or out of the system as work, heat or both.

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