Calculate the amount of heat (in J) to raise the temperature of 22.9 g of water from 4.3 o C to 31.9 oC. (Cs, water = 4.18 J/g-oC)
Question
Calculate the amount of heat (in J) to raise the temperature of 22.9 g of water from 4.3 o C to 31.9 oC.
(Cs, water = 4.18 J/g-oC)
Solution
To calculate the amount of heat, we can use the formula:
q = m * Cs * ΔT
where:
- q is the heat energy,
- m is the mass of the substance,
- Cs is the specific heat capacity of the substance, and
- ΔT is the change in temperature.
Given:
- m = 22.9 g,
- Cs = 4.18 J/g-oC, and
- ΔT = 31.9 oC - 4.3 oC = 27.6 oC.
Substituting these values into the formula, we get:
q = 22.9 g * 4.18 J/g-oC * 27.6 oC = 2627.992 J.
So, the amount of heat required to raise the temperature of 22.9 g of water from 4.3 oC to 31.9 oC is approximately 2628 J.
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