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How many joules of energy are required to heat 474g of water from 5.4°C to 98.6°C?

a. 1.89×104J.
b. 2.93×104J.
c. 3.74×104J.
d. 4.62×104J.

User Adriean
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1 Answer

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Final answer:

The amount of energy required to heat 474g of water from 5.4°C to 98.6°C is 2.93 × 10^4 J.

Step-by-step explanation:

To calculate the amount of energy required to heat the water, we can use 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.

Substituting the given values into the equation:

Q = (474g) × (4.184 J/g °C) × (98.6°C - 5.4°C)

Solving this equation:

Q = 2.93 × 104 J

Therefore, the amount of energy required to heat 474g of water from 5.4°C to 98.6°C is 2.93 × 104 J.

User Elyograg
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