Предмет: Физика, автор: Denis123432

Какова была начальная температура газа, если при неизменном давлении и увеличении его объёма от 7 литров до 14 литров его температура увеличелась до 300К. Температуру выразите по шкале Цельсия.

Ответы

Автор ответа: MaxikMK
0
Дано:
V1 = 7 л = 7 дм³ = 0,007 м³;
V2 = 14 л = 14 дм³ = 0,014 м³;
T2 = 300 K;
p — const;
t1 — ?

Решение:
(используем закон Гей-Люссака)
V1/T1 = V2/T2,
T1 = V1*T2/V2.

T1 = 0,007*300/0,014 = 150 (K),
t1 = T1 - 273 = 150 - 273 = -123 (°C).

Ответ: -123° C.
Приложения:
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