A fixed mass of an ideal gas has a pressure p and a volume V.
The gas undergoes a cycle of changes, A to B to C, as shown in Fig. 1.1
Table 1.1 shows data for p, V and T for points A, B and C.
Table 1.1
p / 105 Pa | V / 10−3 m3 | T / K | |
A | 680 | ||
B | 1.6 | 4.4 | 451 |
C | 698 |
State the change in internal energy ΔU for one complete cycle, ABCA.
Calculate the number of particles N in the gas.
Complete Table 1.1 by filling in the missing pressures and volumes at A, B and C.
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