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NemiM [27]
3 years ago
15

How does the addition of salt to solid ice affect the melting transition from solid to liquid?

Chemistry
2 answers:
serious [3.7K]3 years ago
7 0

Answer:

Im sure the answer is c

Hope this helped have a good day :) please mark me the brainliest answer?

Vadim26 [7]3 years ago
4 0
<h2>Answer:</h2>

The water would need to <u>B. absorb less energy during the plateau in order to melt</u>.  

<h2>Explanation:</h2>

Salt when added to ice lowers the freezing point of the ice. So, if ice is added to the solid ice it doesn't let it to freeze rather the temperature of water may fall but it won't freeze.

For melting, it needs less energy after adding salt because salt itself absorbs the energy from the surroundings to help the phase transition of water from solid to liquid.

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The correct answer is D!

Explanation:

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The decomposition of dinitrogen pentoxide, N2O5, to NO2 and O2 is a first-order reaction. At 60°C, the rate constant is 2.8 × 10
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The correct option is a.

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125 kPa

125kpa - 2x                            4x    x

Total pressure after reaction = 176 kPa

125 kPa - 2x + 4x + x = 176 kPa

x = 17

125 kpa - 2x = 125 kPa - 2(17) = 91 kPa

Initial pressure of the dinitrogen pentoxide ,(at t=0) =P_o= 125 kPa

Final pressure of the dinitrogen pentoxide, (at t = t) = P = 91 kPa

The rate constant is = k = 2.8\times 10^{-3} min^{-1}

t=\frac{2.303}{k}\log\frac{P_o}{P}

t=\frac{2.303}{2.8\times 10^{-3} min^{-1}}\log\frac{125 kPa}{91 kPa}

t=113.3969 minutes\approx 113 minutes

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