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从微观来说,理想气体压强就是分子碰撞容器壁产生的平均效果,那么分子与器壁的碰撞是___ From the microscopic point of view, the Ideal Gas Pressure is the average effect produced by the collision of molecules against the vessel wall, so the collision between molecules and the vessel wall is ___
A.弹性碰撞; Elastic collision;
B.一般非弹性碰撞; General inelastic collisions;
C.完全非弹性碰撞; Completely inelastic collision;
D.一个都不是; None of them;
参考答案和解析
正确
更多 “从微观来说,理想气体压强就是分子碰撞容器壁产生的平均效果,那么分子与器壁的碰撞是___ From the microscopic point of view, the Ideal Gas Pressure is the average effect produced by the collision of molecules against the vessel wall, so the collision between molecules and the vessel wall is ___A.弹性碰撞; Elastic collision;B.一般非弹性碰撞; General inelastic collisions;C.完全非弹性碰撞; Completely inelastic collision;D.一个都不是; None of them;” 相关考题
考题
下列说法正确的是A. 气体对器壁的压强就是大量气体分子作用在器壁单位面积上的平均作用力B. 气体对器壁的压强就是大量气体分子单位时间作用在器壁上的平均冲量C. 气体分子热运动的平均动能减少,气体的压强一定减小D. 单位面积的气体分子数增加,气体的压强一定增大
考题
下面不属于理想气体微观模型特点的是()。
A、分子之间的平均距离远大于分子自身线度B、除碰撞的瞬间外,分子之间以及分子与器壁之间均无相互作用C、分子之间以及分子与器壁之间的碰撞是完全弹性碰撞D、分子与分子之间的碰撞力适用牛顿定理。
考题
理想气体的模型是:气体分子之间的平均距离相当大,分子体积与气体总体积相比可忽略不计;();分子之间的相互碰撞以及分子与容器壁的碰撞都是弹性碰撞.A.分子之间有作用力B.分子之间有较大作用力C.分子之间有较小作用力D.分子之间无作用力
考题
A vessel not to impede the passage of another vessel is not relieved ______ taking collision-avoiding action.A.onB.ofC.inD.for
考题
以下说法正确的是()A、分子间距离增大时,分子势能一定增大B、分子间距离减小时,分子引力减小,分子斥力增大C、气体对器壁的压强是由大量气体分子对器壁频繁碰撞而产生的D、当气体膨胀时,气体分子势能减小,因而气体的内能减少
考题
某容器内分子数密度为1026m-3,每个分子的质量为3×10-27kg,设其中1/6分子数以速率v=200m·s-1垂直地向容器的一壁运动,而其余5/6分子或者离开此壁、或者平行此壁方向运动,且分子与容器壁的碰撞为完全弹性。则 (1)每个分子作用于器壁的冲量Δp=(); (2)每秒碰在器壁单位面积上的分子数n0=(); (3)作用在器壁上的压强p=()。
考题
单选题Especially in adverse weather,risk of collision with an offshore supply vessel increases when the vessel is moored to what side of the unit?().A
UpwindB
DownwindC
CrosswindD
Downcurrent
考题
单选题Following a collision or accident,the Master of each vessel involved must render assistance to persons affected by the collision or accident().A
if he can do so without any risk to his vesselB
if he can do so without undue delayC
if he can do so without serious danger to his vessel or to individuals on boardD
without regard to any danger to his vessel
考题
单选题The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that().A
risk of collision existsB
the other vessel will cross ahead of herC
the other vessel is not taking appropriate actionD
collision cannot be avoided by the give-way vessel's maneuver alone
考题
单选题The disadvantage of using a heaving line to pass a towline is that().A
it increases the likelihood of collision between the towing vessel and the disabled vesselB
recreational boaters tend to make the heaving line fast to the towed vessel as if it were the towlineC
the monkey fist may injure someoneD
it may reduce the catenary and increase yawing
考题
单选题You are in charge of a stand-on vessel in a crossing situation.The other vessel is 1.5 miles to port.You believe that risk of collision exists.You should().A
take avoiding action immediately upon determining that risk of collision existsB
immediately sound the danger signalC
take avoiding action only after providing the give-way vessel time to take action ,and determining that her action is not appropriateD
hold course and speed until the point of extremis, and then sound the danger signal, taking whatever action will best avert collision
考题
单选题Which statement is true concerning a vessel equipped with operational radar?().A
The Master of the vessel must be on the bridge when the radar is in useB
The radar equipment is only required to be used in restricted visibilityC
The use of a radar excuses a vessel from the need of a look-outD
This equipment must be used to obtain early warning of risk of collision
考题
单选题A vessel is in sight of another vessel when she().A
can be observed by radarB
has determined that risk of collision existsC
is sounding a fog signal which can be heard on the other vesselD
can be observed visually from the other vessel
考题
单选题After a collision or accident involving an uninspected vessel,regulations require that the operator assist persons affected,but only if the operator can do so without().A
further damaging the other vesselB
undue delayC
serious danger to his or her own vesselD
creating a panic on either vessel
考题
单选题When is a stand-on vessel FIRST allowed by the Rules to take action in order to avoid collision?()A
When the two vessels are less than half a mile from each otherB
When the give-way vessel is not taking appropriate action to avoid collisionC
When collision is imminentD
The stand-on vessel is never allowed to take action
考题
单选题A vessel not to impede the passage of another vessel is not relieved () taking collision-avoiding action.A
onB
ofC
inD
for
考题
单选题以下说法正确的是()A
分子间距离增大时,分子势能一定增大B
分子间距离减小时,分子引力减小,分子斥力增大C
气体对器壁的压强是由大量气体分子对器壁频繁碰撞而产生的D
当气体膨胀时,气体分子势能减小,因而气体的内能减少
考题
单选题The term length of a vessel in International Regulations for Preventing Collision at Sea 1972 means().A
the length between perpendicularsB
the registered lengthC
the length overallD
the length of waterplane on summer draft
考题
单选题The Rules state that risk of collision shall be deemed to exist().A
Whenever two vessels approach from opposite directionsB
If the bearing of an approaching vessel does not appreciably changeC
Whenever a vessel crosses ahead of the intended track of another vesselD
If one vessel approaches another so as to be overtaking
考题
单选题You are approaching another vessel and are not sure whether danger of collision exists. You must assume().A
there is a risk of collisionB
you are the give-way vesselC
the other vessel is the give-way vesselD
there is no risk of collision
考题
单选题The Chinese vessel was()a foreign vessel.A
in collision betweenB
in collision withC
collision ainstD
collision with
考题
单选题The sealing function of the piston ring is brought about by the gas pressure above and behind the piston ring, which forces it () against the bottom of the ring groove, and () against the cylinder wall.A
upwards;inwardsB
upwards;outwardsC
downwards;inwardsD
downwards;outwards
考题
单选题In restricted visibility, a vessel which detects by radar alone the presence of another vessel shall determine if a close quarters situation is developing or risk of collision exists. If so, she shall().A
sound the danger signalB
when taking action, make only course changesC
avoid altering course toward a vessel abaft the beamD
All of the above
考题
单选题按照气体分子运动论,气体压强的形成是由于( )。A
气体分子不断碰撞器壁B
气体分子之间不断发生碰撞C
气体分子的扩散D
理想气体的热胀冷缩现象
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