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单选题 After a throttling expansion process for a certain ideal gas, it behaves as
学科：热学（双语）
时间：2024-05-19 12:04:13
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题目1单选题
设有下列过程: (1) 用活塞缓慢地压缩绝热容器中的理想气体.(设活塞与器壁无摩擦)(2) 用缓慢地旋转的叶片使绝热容器中的水温上升. (3) 一滴墨水在水杯中缓慢弥散开. (4) 一个不受空气阻力及其它摩擦力作用的单摆的摆动. 其中是可逆过程的为A. 、(2)、(4)B. 、(2)、(3)C. 、(3)、(4)D. 、(4)
题目2单选题
如图所示,一定量理想气体从体积V1,膨胀到体积V2分别经历的过程是:A→B等压过程,A→C等温过程;A→D绝热过程,其中吸热量最多的过程<img src="https://tihai-oss-cloud.itihey.com/img/763e4210cc6038a38164afad1f715b4f.jpg">A. 是A→BB. 是A→CC. 是A→DD. 既是A→B也是A→C, 两过程吸热一样多
题目3单选题
如图所示,当气缸中的活塞迅速向外移动从而使气体膨胀时,气体所经历的过程 <img src="https://tihai-oss-cloud.itihey.com/img/ff06f0f19610c117ed83c12b345b9b06.jpg">A. 是平衡过程,它能用p─V图上的一条曲线表示B. 不是平衡过程,但它能用p─V图上的一条曲线表示C. 不是平衡过程,它不能用p─V图上的一条曲线表示D. 是平衡过程,但它不能用p─V图上的一条曲线表示
题目4单选题
1摩尔真实气体的范德瓦尔斯方程为(p+a/V2)(V-b)=RT,式中(1)a/V2表示真实气体表面层的单位面积上所受内部分子的引力(2)p+a/V2表示1摩尔真实气体施于器壁的实际压强(3)a表示1摩尔真实气体在占有单位体积时的压强减少量(4)V-b表示1摩尔真实气体可被压缩的空间 以上说法中A. 只有(1)(2)是正确的B. 只有(3)(4)是正确的C. 只有(1)(3)(4)是正确的D. 全部都是正确的
题目5单选题
某理想气体状态变化时,内能随体积的变化关系如图中AB直线所示.A→B表示的过程是 <img src="https://tihai-oss-cloud.itihey.com/img/4365aff439bbdd6136df227d457166e7.jpg">A. 等压过程B. 等体过程C. 等温过程D. 绝热过程
题目6单选题
There are four kinds of ideal gases stored in a closed container at an equilibrium state. The molecular number density of the A-type gas is n1 with the contribution to the pressure p1. The molecular number density of the B-, C- and D-type gas is 2n1, 2n1 and n1, respectively. So, the total pressure of the mixed gas isA. 3p1B. 4p1C. 5p1D. 6 p1
题目7单选题
There is a closed cylinder whose section is uniform, it is separated by a smooth piston into two chambers. 0.1 kg hydrogen at some temperature is injected into one chamber, how many oxygen at the same temperature should be poured into another chamber in order to keep the piston in the middleA. kgB. 0.8 kgC. 1.6 kgD. 3.2 kg
题目8单选题
After a throttling expansion process for a certain ideal gas, it behaves asA. The temperature keeps constant, but the enthalpy increasesB. The temperature decreases, but the enthalpy increasesC. The temperature keeps constant, and the enthalpy doesn't change,eitherD. The temperature decreases, but the enthalpy doesn't change
题目9单选题
The temperature of a given ideal gas is increased after a process. It can be determined that (1) Heat is absorbed by the system during the process. (2) Positive work is done by the surroundings to the system during the process. (3) The internal energy of the system is added. (4) Heat is absorbed from the universe and positive work is also done outwards. Which statements are true? (A) (1)、(3). (B) (2)、(3). (C) (3). (D) (3)、(4). (E) (4)A. 、(3)B. 、(3)C. D. 、(4)E.
题目10单选题
A certain ideal gas is experienced an adiabatic free expansion process to a vacuum. After that, how does the temperature T and pressure p change, respectivelyA. T keeps constant, p increasesB. T keeps constant, p decreasesC. T and p both keep constantD. T and p both increase
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