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Although C_(P) is usually assumed to be constant, for more accurate calculations we must consider its variation with temperature as well. This relation is given by : C_(P) = a + b T + c T^(2) + d T^(3) mol^(-1) K^(-1) Find the expression for the amount of heat required to raise the temperature of 1 mole of gas from T_(1) Kto T_(2) K , while (i) keeping the first term [i.e. C_(P) = a] (ii) keeping the first two terms. (ii) keeping all the terms of the above expression. Note that each successive term introduces higher accuracy. |
| Answer» SOLUTION :(i) `a DELTA T` | |