(TCO 1) How many calories of heat must be added to 455 g of steel to raise its temperature from 20 °C to 192 °C?

(Note: c_steel = 0.115 cal./g. °C.)

5.1 x 10³ cal

9.0 x 10³ cal

7.7 x 10³ cal

2.1 x 10⁴ cal

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