1.

If \[\Delta Q\] and \[\Delta W\] represent the heat supplied to the system and the work done on the system respectively, then the first law of thermodynamics can be written as

A. \[\Delta Q=\Delta U+\Delta W\]
B. \[\Delta Q=\Delta U-\Delta W\]
C. \[\Delta Q=\Delta W-\Delta U\]
D. \[\Delta Q=-\Delta W-\Delta U\]
Answer» C. \[\Delta Q=\Delta W-\Delta U\]


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