|
The gas used in a refrigerator is |
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|
(a) |
cooled down on flowing |
(b) |
heated up on flowing |
|
(c) |
cooled down when compressed |
(d) |
cooled down when expanded |
|
The gas used in a refrigerator is |
|||
|
(a) |
cooled down on flowing |
(b) |
heated up on flowing |
|
(c) |
cooled down when compressed |
(d) |
cooled down when expanded |