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Luba_88 [7]
2 years ago
12

To convert 20 g of ice at -10°C to 110°C to steam you need cal of energy?

Chemistry
1 answer:
shtirl [24]2 years ago
6 0

Answer:

29,200 cal = 1.22 E 5 joules

Explanation:

hope this helps

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A gas sample has volume 3.00 dm3 at 101
gavmur [86]

Answer:

V₂ = 21.3 dm³

Explanation:

Given data:

Initial volume of gas = 3.00 dm³

Initial pressure = 101 Kpa

Final pressure = 14.2 Kpa

Final volume = ?

Solution;

The given problem will be solved through the Boly's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

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Now we will put the values in formula,

P₁V₁ = P₂V₂

101 Kpa × 3.00 dm³ = 14.2 Kpa × V₂

V₂ = 303 Kpa. dm³/  14.2 Kpa

V₂ = 21.3 dm³

Explanation:

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Answer:

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How does the appearance of a substance change when it<br> changes phase?
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Answer:

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Explanation:

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