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3 years ago

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:

We have the amount of energy gain

⋅

where

4.184

is the specific heat of water,

is the mass of water

⇒

840

4.184

⋅

(

−

)

840

4.184

i.e.

∘

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3 years ago

A 215-g sample of copper metal at some temperature is added to 26.6 g of water. The initial water temperature is 22.22 oC, and t

andrezito [222]

The initial temperature of the copper metal was 27.38 degrees.

Explanation:

Data given:

mass of the copper metal sample = 215 gram

mass of water = 26.6 grams

Initial temperature of water = 22.22 Degrees

Final temperature of water = 24.44 degrees

Specific heat capacity of water = 0.385 J/g°C

initial temperature of copper material , Ti=?

specific heat capacity of water = 4.186 joule/gram °C

from the principle of:

heat lost = heat gained

heat gained by water is given by:

q water = mcΔT

Putting the values in the equation:

qwater = 26.6 x 4.186 x (2.22)

qwater = 247.19 J

qcopper = 215 x 0.385 x (Ti-24.4)

= 82.77Ti - 2019.71

Now heat lost by metal = heat gained by water

82.77Ti - 2019.71 = 247.19

Ti = 27.38 degrees

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3 years ago