CAIE A-Level Physics A2 16.2.2 The First Law of Thermodynamics U Q W Expressed Topic Practice

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Question 1

[Maximum number: 5]

Question (a)

(a)

State the first law of thermodynamics. Identify the meaning of any symbols that you use.

[ 2 ]

Question (b)

(b)

The state of an ideal gas is continuously changed according to the cycle ABCDA shown in Fig. 3.1.

Fig. 3.1

Fig. 3.1

[ 3 ]

Question (i)

(i)

Use the first law of thermodynamics to describe and explain the energy transfers associated with one complete cycle ABCDA.

[ 3 ]
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