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banana with an average mass of 0.15 kg and average specific heat of 3.35 kJ/kg · °C is cooled from 20°C to 5°C. The amount of heat transferred from the banana is

a.
62.1 kJ

b.
7.5 kJ

c.
None of these

d.
6.5 kJ

e.
0.85 kJ

f.
17.7 kJ

Respuesta :

Answer:

The amount of heat transferred from the banana is (-)7.54 KJ

Explanation:

As we know,

[tex]Q = m*c*\Delta T[/tex]

Q = Amount of heat transferred

m = mass of banana

[tex]T_2 = 5[/tex] degree Celsius

[tex]T_1 = 20[/tex] degree Celsius

The amount of heat transferred from the banana =

[tex]0.15 * 3.35 * (5 -20)\\-7.54[/tex]KJ (negative sign represents reduction in heat energy)

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