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Gekata [30.6K]
2 years ago
14

Based on the diagram, which statement explains how energy is conserved during this chemical reaction? D B Potential energy of a

system - - 1 1 I с Reaction progress A. The potential energy changes indicated by C and B involve energy lost by the surroundings. B. The potential energy lost by the reaction system (B) is gained by the surroundings. C. The potential energy gained by the reaction system (A) is also gained by the surroundings. O D. The potential energy lost by the reaction system (C) is also lost by the surroundings.​

Chemistry
1 answer:
Salsk061 [2.6K]2 years ago
6 0
D hope this helps you
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Read 2 more answers
How much heat is given off when 18.5g of water at 35.0 degrees Celsius freezes to ice at -5.00 degrees Celsius
saveliy_v [14]

9086.3J

Explanation:

Given parameters:

Mass of water = 18.5g

Initial temperature of water = 35°C

Finial temperature = -5°C

Unknown:

Amount of heat given off = ?

Solution:

In converting the water to ice, the water goes through these  processes:

   35°C  to freezing point at 0°C   =  mcΔT

   0°C  of water to 0°C of ice = mL

   0°C of ice to -5°C  = mcΔT

The heat given off;

 H = mc₁ΔT  +  mL  +  mc₂ΔT

m is the mass of water

c₁ is the specific heat capacity of water = 4.2J/g °C

c₂ is the specific heat capacity of ice = 2.03J/g °C

L is the latent heat of fusion = 334J/g

ΔT = T₂ - T₁ = temperature change

H = 18.5 x 4.2 + (0-(-35)) + (18.5 x 334) + (18.5 x 2.03 x (-5 - (0))

H = 2719.5J  + ‬6179J + 187.8J = 9086.3J

learn more:

Specific heat brainly.com/question/7210400

#learnwithBrainly

5 0
3 years ago
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