Вопрос школьника по предмету Физика
Плотность кислорода при нормальных условиях равна 1,43кг/м3. Найдите плотность кислорода если его давление увеличилось до 3*10^5 Па. Процесс считать изотермическим
Ответ учителя по предмету Физика
Нормальные условия
Р=10^5 Па
Т=273 К
Молярная масса кислорода ц=0,032 кг/моль
R=8.31 Дж/моль*К
PV= m / n*RT
Плотность p=m/V=Pu / RT = 10^5*0,032 / 8/31*273-1.41 кг/м3
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LADY WATT ACCUSED OF SHOP-LIFTING
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The Store Detective: I was on duty on the second flour when I observed Lady Watt trying on a scarf. She looked at herself in the mirror, looked around several times and then put the scarf into her bag. Then she went up in the lift to the top floor café where she met a man. I kept on my observation and when they left together, I followed them to the door. She had made no attempt to pay so I stopped her and asked her to accompany me to the manager’s office. She became abusive and refused to go with me until a policeman arrived on the scene.
а)белое море
б)каспийское
в) японское