Respuesta :
Answer:
176984.38J
Explanation:
E = mC∆T
Where E is the energy in joules
M is the mass of water
C is the specific heat capacity of water =4.184J/g°C
It is known that it will take 4.184J of energy to change the temperature of water by one degree Celsius.
∆T = 98.6°c - 5.4°c
= 93.2°c
∆H = 454.3g × 4.18J/g°C × 93.2°c
= 176984.3768
176984.38J
The joules of energy required to heat 454.3g of water from 5.4°C to 98.6°C is 177153.628J.
HOW TO CALCULATE ENERGY:
- The energy required to heat a substance can be calculated by using the following formula:
- Q = m × c × ∆T
Where;
- Q = amount of heat absorbed or released (J)
- m = mass of substance (g)
- c = specific heat capacity (J/g°C)
- ∆T = change in temperature (°C)
- According to this question, 454.3g of water increased from 5.4°C to 98.6°C. The energy can be calculated as follows:
- Q = 454.3 × 4.184 × (98.6 - 5.4)
- Q = 1900.79 × 93.2
- Q = 177153.628J
- Therefore, joules of energy required to heat 454.3g of water from 5.4°C to 98.6°C is 177153.628J
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