Calculate the amount of heat needed to increase the temperature of 250 g of water from 20.0 ºC to 46.7 ºC.

1 answer:

8 0

The amount of heat needed to increase the temperature of 250 g water from 20 c to 46.7 c is calculated as follows

Q = MC delta T , where
Q= heat = ?
M = mass =250 g
C= specific heat capacity of water = 4.186 j/g c
delat T = change in temperature = 46.7 -20=26.7 c

Q = 250 g x4.186 j/g/c x26.7 c = 27941.55 j which is approximate to
28000 j(answer A)

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