Respuesta :
Answer:
C
Explanation:
Heat required= Mass of water x specific heat capacity of water x change in temperature of water required
[tex]q \: = m \times c \times delta \: t[/tex]
M = 500g
C = 4.184 g°C
Delta T = 100 - 25(room temp) = 75°C
Heat needed= 500 x 4.184 x 75
= 156900 J
= 156.9 KJ
~ 157.0 KJ (3.D.P)
The heat that is required to change the temperature of two cups of water (500 g) from room temperature (25◦C) to boiling
C) 157 kJ
Heat
Heat required= Mass of water x specific heat capacity of water x change in temperature of water required
Q=m* c* delta T
M = 500g
C = 4.184 g°C
Delta T = 100 - 25(room temp) = 75°C
Heat = 500 x 4.184 x 75
Heat = 156900 J
Heat = 156.9 KJ
Heat ~ 157.0 KJ (3.D.P)
Thus, the correct answer is C.
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