Respuesta :
Answer:
Q = 8368J
Explanation:
Mass(m) = 40g
Initial temperature (T1) = 25°C
Final temperature (T2) = 75°C
Specific heat capacity (c) = 4.184J/g°C
Heat energy (Q) = ?
Q = Mc∇T
Q = Mc * (T2 -T1)
Q = 40 * 4.184 * (75 - 25)
Q = 167.36 * 50
Q = 8368J
The heat energy required to raise the temperature from 25°C to 75°C is 8368J
The energy required is 8368 Joules
The calculation can be done as follows
Mass= 40 grams
t1= 25°c
t2= 75°c
capacity= 4.84 J/g
Q= MC (t2-t1)
Q= 40×4.184(75-25)
= 167.36(50)
= 8,368
Hence the energy required is 8368 Joules
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