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a) Ống thẳng đứng, miệng ống ở trên .
Một lượng khí chứa trong bình kín có thể tích 10 lít, áp suất 106 Pa . Người ta lấy bớt 5.105 Pa, nhiệt độ của khí không đổi. Áp suất của khí còn lại trong bình sẽ là:
A. 7,5.105 Pa B. 1,5.106 Pa C. 5.106 Pa D. 5.105 Pa
Chắc chắn 100% luôn nha, cô mik mới dạy sáng nay
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Theo pt trạng thái của khí lí tưởng:
P1V1T1 =P2V2T2
⇔2.15300 = 3,5.12T2
⇒ T2 = 420 K
https://h.vn/hoi-dap/tim-kiem?q=M%E1%BB%99t+l%C6%B0%E1%BB%A3ng+kh%C3%AD+%C4%91%E1%BB%B1ng+trong+m%E1%BB%99t+xilanh+c%C3%B3+pittong+chuy%E1%BB%83n+%C4%91%E1%BB%99ng+%C4%91%C6%B0%E1%BB%A3c.+C%C3%A1c+th%C3%B4ng+s%E1%BB%91+tr%E1%BA%A1ng+th%C3%A1i+c%E1%BB%A7a+l%C6%B0%E1%BB%A3ng+kh%C3%AD+n%C3%A0y+l%C3%A0+:+2+at,+15+l%C3%ADt,+300K.+Khi+pittong+n%C3%A9n+kh%C3%AD,+%C3%A1p+su%E1%BA%A5t+c%E1%BB%A7a+kh%C3%AD+t%C4%83ng+l%C3%AAn+t%E1%BB%9Bi+3,5+at+,+th%E1%BB%83+t%C3%ADch+gi%E1%BA%A3m+c%C3%B2n+12l.+Nhi%E1%BB%87t+%C4%91%E1%BB%99+c%E1%BB%A7a+kh%C3%AD+n%C3%A9n+l%C3%A0+......&id=265613
cậu copy link tren rồi sẽ tìm ddcj loi giai như ý của tớ chưa biết viết phan số nên đừng ghi vội mà tìm theo link tren hẵng
a) TT1: p1=2atm; V1=13l; T1=301K
TT2: p2=?; V2=6l; T2=const
Áp dụng định luật Bôi-lơ Ma-ri-ôt ta có: p1.V1=p2.V2<=>2.13=p2.6<=>p2=(2.13):6<=>p2=13/3(atm)
b) TT3: p3=3,5atm; V3=10l; T3=?
Áp dụng phương trình trạng thái khí lý tưởng ta có: (p1.V1):T1=(p3.V3):T3<=>T3=(p3.V3.T1):(p1.V1)<=>T3=405(K)(mình lấy giá trị gần đúng thôi ạ)
=>T3=405-273=132(oC)
Chúc bạn may mắn!!!
Trả lời
Đánh dấu
7 tháng 4 lúc 15:26
một lượng khí đựng trong một xilanh có pittong chuyển động được . các thông số trạng thái của lượng khí này có áp suất là 2atm , thể tích là 13 lít , nhiệt độ là 28 độ C
a) khi giữ cho nhiệt độ khối khí không đổi , nén pittong đến thể tích 6 lít thì áp suất của khối khí là bao nhiêu ?
b) khi pittong nén khí , áp suất của khí tăng lên tới 3,5 atm thể tích giảm còn 10lit . hỏi nhiệt độ của khối khí là bao nhiêu độ C
giải giùm mình với ạ mình đang cần rất gấp luôn ạ huhu ! mình cảm ơn
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một bà cụ đi mua rau bà gặp đèn vàng hỏi bà đi mua rau gì
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