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вычислите объём жидкого воздуха если при t кипени он поглотил 170КДж теплоты при переходе в газ
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Предмет:
Физика -
Автор:
veleriojcva - 5 лет назад
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Ответы 1
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Q = 170 кДж = 170000 ДжL = 210000 Дж/кгρ = 960 кг/м³V - ?V = m / ρm = Q / L => V = Q / (ρ * L)V = 170000 Дж / (960 кг/м³ * 210000 Дж/кг) ≈ 8,4*10⁻⁴ м³ = 0,84 л
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Автор:
alonzomnek - 5 лет назад
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Нужен перевести на русский!Помогите!!!
The children fixed their eyes upon Anne. Anne gazed back, feeling helpless.
"Now, children," began Miss Enderby firmly, "you are very, very lucky this term to have Miss Lacey for your new teacher."
Anne gave a watery smile. The Children's faces were unmoved.
"Miss Lacey," repeated Miss Enderby with emphasis. "Can you say that?"
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"Perhaps you could say 'Good morning' to your new teacher?" suggested Miss Enderby in an imperative tone.
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The little boy addressed, who had been crossing and uncrossing his eyes in an ugly manner for the enjoyment of his neighbours, looked suitably crest-fallen.
"If I were you, I should keep an eye on that boy," murmured Miss Enderby. "Broken home — brother in Borstal — and some rather dreadful habits!"
Anne looked with fresh interest at Arnold and thought he looked quite different from what Miss Enderby said about him. Far too innocent and apple-cheeked to have such a record. But even as she looked, she saw his pink face express his scorn of Miss Enderby who was giving her final messages to the new teacher.
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