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nata0808 [166]
3 years ago
10

What temperature change in Celsius degrees is produced when 800. J is absorbed by 100. G of water?

Chemistry
1 answer:
g100num [7]3 years ago
6 0

Answer: The final temperature is equal to

45 Celsius

Explanation:

Explanation:

We have the amount of energy gain

Q

=

m

⋅

c

⋅

Δ

T

=

m

c

Δ

t

where

c

=

4.184

J

/

g

.

C

is the specific heat of water,

m

is the mass of water

⇒

840

=

10

x

4.184

⋅

(

t

−

25

)

t

=

840

10

x

4.184

+

25

=

45

i.e.

45

∘

C

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c = speed of light = 3\times 10^8m/s

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E=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{0.122m}\\\\E=162.93\times 10^{-26}J

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Energy released for 0.324 moles of hydrogen reacted is 174 kJ

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When heat is absorbed, the sign of heat is taken to be positive and when heat is released, the sign of heat is taken to be negative.

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Putting values in equation 1, we get:

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Putting values in equation 1, we get:

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