How much energy is required to increase the temperature of 175 mL of water from 18.5 ° C to 85.0 ° C? Assume the specific heat of water to be 4.18 J\g ° C.

Question

Quizplus · Accepted Answer

The correct answer is B because the energy required to increase the temperature of water is given by the equation Q = mcΔT, where Q is the energy in joules, m is the mass of the water in grams, c is the specific heat of water in J/g °C, and ΔT is the change in temperature in °C. In this case, the mass of the water is 175 mL, which is equal to 175 g, the specific heat of water is 4.18 J/g °C, and the change in temperature is 85.0 °C - 18.5 °C = 66.5 °C. Plugging these values into the equation, we get Q = (175 g)(4.18 J/g °C)(66.5 °C) = 48,645 J.

How Much Energy Is Required to Increase the Temperature of 175