5. (4 points) The state of an ideal gas is changed in a closed path 1 _ 2-3-471. Which of the following is true about work done on the gas? W1-2 > 0, W2-+3 0, W3_4 < 0, W-+1 =0 W1-2 < 0, W2-3 = 0, W3_4 = 0, W4-1 > 0 W1-2 < 0, W2-3 = 0, W3_4 > 0, W4_1 = 0 W1-2 = 0. W2-3 > 0, W3_4 = 0, W4-1 < 0 W1-2 = 0. W2_3 < 0, W3_4 = 0, W4-1 > 0
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2
3
V