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[學科討論] Phy heat 題目 求解+ans

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Phy heat 題目 求解+ans

Q1 A cylinder is closed by a piston connected to a spring of constant 2.40 x 103 N/m. With the spring relaxed, the cylinder is filled with 5.00 L of gas at a pressure of 1.00 atm and a temperature of 20.0°C.

a) If the piston has a cross-sectional area of 0.0130 m2 and negligible mass, how high (in meter) will it rise when the temperature is raised to 250°C?
b) The pressure of the gas at 250°C = __ × 105 P





Q2
In the figure below, a 1.00 mol monatomic ideal gas is taken through the cycle. At point A, the pressure, volume, and temperature are Pi, Vi, and Ti, respectively. (Answer the following questions in terms of R and Ti.)
a) Find the total energy entering the system by heat per cycle.
_?_  × nRTi
b) Find the total energy leaving the system by heat per cycle.
?__ × nRTi

c) Find the efficiency of an engine operating in this cycle.







[ 本帖最後由 abcdefi 於 2015-12-2 09:08 PM 編輯 ]
   

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你咁樣複製貼上圖又唔識貼搞到條題目發紅發紫鬼唔馬六可唔可以清楚d?
大學生架喇,學下打條問題上google絕對快過你係到問
其實你有冇諗過自己唔適合讀physics?
唔好話人地唔幫你,不如問下你自己有冇努力過仲好

第一題
http://www.ux1.eiu.edu/~cfadd/1360/19Temp/HmwrkSol.html
第二題
https://answers.yahoo.com/questi ... 130905160318AAm5YFB
第三題
https://answers.yahoo.com/questi ... 100124184752AATOM3V
第四題
https://answers.yahoo.com/questi ... 090216125128AA1nhOm
第五題
https://answers.yahoo.com/questi ... 081103145522AAup01f

順便答埋你另外個post
http://lsforum.net/board/redirec ... o=lastpost#lastpost
https://answers.yahoo.com/questi ... 090904111847AA4Iwxs

全部題目換返你d數就計到

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thanks gas真系咁多課入面都算難

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