**Question 1** 139.0 g of water is heated using 68.0 W of power, with perfect efficiency. How long will it take to raise the temperature of the water from 15°C to 25°C? - a) 86 s - b) 20 s - c) 4.9 s - d) 400,000 s Click Save and Submit to save and submit. Click Save All Answers to save all answers.

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