Question

Specific heat, heat transfer, and calorimetry.

You have 10.0 kg of water and 10.0 kg of liquid Hg. Given that (C_water = 4180 , J/kg°C) and (C_mercury = 140 , J/kg°C), how much more energy do you need to put into water to increase its temperature by 1.00 °C?
a) 4180 J
b) 140 J
c) 4040 J
d) 4310 J

Answer 1

To increase the temperature of 10.0 kg of water by 1.00 °C, you would need 41,840 J.

Step-by-step explanation:

The specific heat of water is 4.184 J/g °C. To heat 1 g of water by 1 °C requires 4.184 J. Since we have 10.0 kg (or 10,000 g) of water, we will need 4.184 J * 10,000 g = 41,840 J to increase its temperature by 1.00 °C. Therefore, the correct answer is c) 4040 J.