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Answer :
The quantity of Heat, Q, required to heat 1.37kg of water from 21.3 to 89.5 is 390.55 kJ.
What is quantity of Heat?
The quantity of Heat is the amount of heat energy added or removed from a substance.
- Quantity of Heat = mass × specific heat capacity × temperature change
The quantity of Heat, Q, required to heat 1.37kg of water from 21.3 to 89.5 is calculated as follows:
- Q = mcΔΤ
mass of water = 1.37 kg = 1370 g
specific heat capacity of water = 4.18 J/g° C
Temperature difference, ΔΤ= 89.5-21.3= 68.2˚C
Q = 1370 g × 4.18 J/g˚C × 68.2˚C
Q = 390,554.12
Q = 390.55 kJ
Therefore, the quantity of Heat, Q, required to heat 1.37kg of water from 21.3 to 89.5 is 390.55 kJ.
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Rewritten by : Barada
q= ? kJ
m= 1.37 kg × [tex] \frac{1000 g}{1kg} [/tex] =1370 g
c=4.18 J/g° C
ΔΤ= 89.5-21.3=
68.2˚C
?
J = (1370
g) (4.18
J/g˚C) (68.2˚C)
q
= 390,554 J× [tex] \frac{1kJ}{1000J} [/tex]
q
= 391 kJ
m= 1.37 kg × [tex] \frac{1000 g}{1kg} [/tex] =1370 g
c=4.18 J/g° C
ΔΤ= 89.5-21.3=
68.2˚C
?
J = (1370
g) (4.18
J/g˚C) (68.2˚C)
q
= 390,554 J× [tex] \frac{1kJ}{1000J} [/tex]
q
= 391 kJ
