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FinnZ [79.3K]
3 years ago
6

Calculate the amount of energy released when 2,064 g of water are cooled from 92 ˚C to 45˚C. The specific heat of water is 4.184

.
Chemistry
1 answer:
Andrews [41]3 years ago
8 0

Answer: Q= - 405,881 J or -405.88 kJ

Explanation: To find the amount of heat released we will use the formula of heat which is Q = mc∆T.

Q= 2,064 g ( 4.184 J/g°C) ( 45°C -92°C)

= 2,064 g ( 4.184 J/g°C) ( -47°C)

= -405,881 J

Or we can convert this into kJ which is equal to -405.88 kJ.

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In a science lab, a student heats up a chemical from 10 °C to 25 °C which requires thermal energy of 30000 J. If mass of the obj
olganol [36]

Answer:

The specific heat capacity of the object is 50 J/g°C ( option 4 is correct)

Explanation:

Step 1: Data given

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⇒with c = the specific heat capacity of the object = TO BE DETERMINED

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3 0
3 years ago
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