問題詳情
5.25℃、1atm時,純氧對水之溶解度為1.5x 
mol/L,則25℃時,1atm空氣與水達溶解平衡時,每升水中之溶氧量為若干克?
(A)9.6x 
(B)4.8x
(C)9.6x
(D)4.8x
(E)9.6x 
g。
參考答案
無參考答案
內容推薦
- 【題組】若飛機改以作順時鐘方向且速率愈愈快的圓周運動,則在P點之受力方向為圖中所示何者? (A)(B)(C)(D)
- 如附圖所示的裝置,彈簧秤下方吊著塑膠筒,圓柱體則完全沒入裝著液體的燒杯中,試問在25℃時,下列何種狀況,彈簧秤的讀數最大?(塑膠筒容積=圓柱體體積) (A)塑膠筒內裝滿水,燒杯內也裝水(B)塑膠
- 右圖為A、B、C三種液體之蒸氣壓與溫度的關係,何者的正常沸點最低? (A)A(B)B(C)C(D)三者沸點相同(E)資料不足,無法判定。
- T°C時,一密閉容器中含有0mol 水蒸與0mol氮氣,氣體總壓為75mmHg,則容器內的相對濕度為若干?(已知T°C時水的飽蒸氣壓為40mmHg)(A)55% (B)65% (C)75%
- 一鋼瓶內含有氫氣及飽和的水蒸氣,總壓為750mmHg。若保持溫度不變,將此鋼瓶的容積壓縮為一半時,總壓變為1480mmHg,試問此溫度時水的飽和蒸氣壓為若干?(A)20(B)25 (C)30 (D
- 圖中碗、鐵球及掛鉤的材質均同,請問三種狀態下,碗、鐵球及掛鉤所受浮力大小順序為何? (A)甲=乙=丙(B)甲=乙丙(D)甲>乙>丙。
- 廣告行銷4P，所指為何?編輯私有筆記及自訂標籤教甄◆美術專業-107 年 - 107 臺北市立建國高級中學第一次教師甄選美術科題目PTT版#97731討論私人筆記( 0 )
- 【題組】若已知機質量為m,細繩長為L,繩和鉛直方向的夾角θ，則飛機繞一圈的時間為何? (A) (B) (C) (D) 。
- 中國年畫[北楊/南桃]各在何地? 風格特色差異?編輯私有筆記及自訂標籤教甄◆美術專業-107 年 - 107 臺北市立建國高級中學第一次教師甄選美術科題目PTT版#97731討論私人筆記( 0 )
- 一端開口的的玻璃管中置入一小段水銀柱,使玻璃管底端的空氣成為封閉狀態,並分別將玻璃管的開口向上、向下與向右置放,如圖(一)、圖(二)、圖(三)所示,而此時若封閉端內的空氣壓力分別為Pa、 Pb、
內容推薦
- 如圖,密閉容器中三個相同的燒杯分別加入三種不同溶液。甲:0mL之0 M尿素水溶液；乙:0mL之5M蔗糖水溶液；丙:0mL之00 M葡萄糖水溶液。整個系統達平衡後,各杯
- 【題組】若A、B、C三個球的切線速度量值分別為VVV3,則V1:V2:V3?(A)1:1:1(B)6:5:3(C)1:2:3(D)9:3:1。
- 【題組】若A、B、C三個球的加速度量值分別為aaa3,則a1:a2:a3=?(A)1:1:1(B)6:5:3(C)1:2:3(D)9:3:1。
- 【題組】當物體恰將啟動時,三者的摩擦力大小關係為:(A)甲>乙>丙(B)甲=乙=丙(C)丙>乙>甲(D)乙>丙>甲
- 液體甲與液體乙混合可形成理想溶液,且溶液上的蒸氣為理想氣體。若t°C時,測得該溶液的蒸壓為400mmHg,且蒸氣中甲的莫耳分率為0.20,溶液中甲的莫耳分率為0.25,則t°C時純甲的蒸氣壓為若干
- 乙二醇(分子量62)可做為抗凍劑,若欲使00kg的水在-30℃時仍不結冰,至少需加入乙二醇若干克?(水的Kf=86℃/m)(A)5(B)155(C) 1550 (D) 15500
- 0.05mol的Na2O、Ba(OH)醋酸及食鹽分別溶入1L的水中。在20℃下,哪一溶液的滲透壓最大?(A)Na2O溶液(B)Ba(OH)2溶液(C)醋酸溶液(D)食鹽溶液(E)四者滲透壓
- 生理食鹽水的滲透壓與人體血液相同,若生理食鹽水的體積莫耳濃度約與重量莫耳濃度相等,則生理食鹽水的凝固點為多少℃?(人體血液的滲透壓在37℃時約為7atm；水的莫耳凝固點下降常數是86℃/
- Despite his oath to ________ the law, the accused willfully chose to flout his power while be wa
- If there is an explosion, you should leave the building as quickly as possible. Do not stop to __
- Under federal scntencing guidelines, a person is subject to enhanced penalties if he or she is __
- All overseas workers in South Korea with expired EPS contracts but unable to return to their coun
- The Canada Border Services Agency announced yesterday that three Colombian foreign nationals were
- Rear-end crashes are often caused by sudden deceleration or if another driver ________ to a high
- According to the Ambulance Service, the ________ arrived at the scene to find an overturned car
- Surveillance cam ras captured a man cutting brake lines of 35 vehicles in a a Washington neighbor
- Any evidence that is ________ to the defendant in a criminal trial is considered exculpatory, w
- Sexual harassment in the workplace is an ________ exercise of power.(A)illegible (B)illegitimate
- With the evidence showing his intention of permanently ________the woman of the property, the ac
- The high-ranking general has been identified as the ________ of the revolt in the south.(A)succ
- Police have arrested 16-year-old Stanley Clark as an ________ in connection to a fatal bank rob
- A university student wielding a knife attacked riders aboard a subway train in Taiwan's cap
- The charges on the indictment for three south suburban residents include ________ to traffic co
- Explosive devices are highly portable using vehicles and humans as a m ns of transport. They are
- The smoke from wildfires can become a major ________ that leads to air quality deterioration.(A