Which volume of hydrogen gas (room temperature and pressure, RTP) is formed when 6.5 g of zinc is reacted with sufficient dilute sulfuric acid?( ) A. 1.12 L B. 2.24 L C. 2.4 L D. 22.4 L 相关知识点: 试题来源: 解析B 题目的翻译为:6.5 g Zn 与足量稀硫酸反应,会生成多少体积的 H2...
7 At room temperature and pressure, H2O is a liquid and H2S is a gas.What is the reason for this difference?C A O has higher first and second ionisation energies than S. B The covalent bond between O and H is stronger than the covalent bond between S and H. C There is significant...
At room temperature and pressure natural gas is always in gaseous phase. Generally natural gas contains methane (CH4) at concentrations in 70–98%, ethane (C2H6), propane (C3H8) and butane (C4H10). There is also admixture of hydrogen sulfide (H2S), carbon dioxide (CO2), nitrogen (N2) ...
An ideal gas has a volume of 1000 ft3 at a pressure of 50 psi. The pressure of the gas is increased to 100 psi through the use of a gas compressor. Assuming the temperature of the gas remains constant, calculate the new volume of the gas after the pressure increase. Answer Boyles law...
Chapter4Gasesandtheirproperties Asafixedsampleofgasiscompressedtoasmallervolumeatconstanttemperature,itspressureincreases.Thishappensbecauseforcingthesamenumberofmoleculesintoasmallervolumemakesmorecollisionswiththeircontainer,thusexertingmorepressure.Example:AbicyclepumpAsthevolumeoftheairtrappedinthepumpisreduced,its...
Both pressure and volume are two inversely proportional parameters of a gas. It means that an increase in volume decreases the pressure provided that both temperature and amount of the gas remain constant.Answer and Explanation: The volume of the gas sample at 460 torr is 83...
aRate of volume flow of gas under steady-state conditions, referred to standard temperature and pressure, between opposite faces of a unit cube of solid rubber when subjected to a unit pressure difference and controlled temperature 气体容积流量的率在稳定情况,提到的标准温度和压力下,在坚实橡胶单位...
At low pressure of 4 bar and room temperature, the membrane with high percentage of PU, 20 %, presented the higher permeability to CO_2. The same behavior was observed at a high pressure of 8 bar. The 12% PU presented the higher selectivity to CO_2 in relation to N2 at 4 bar....
It is defined as the relative change in the volume of the gas with respect to the change in pressure at constant temperature. It is expressed in units of reciprocal pressure (usually psi−1). Gas compressibility is defined by the following equation: (3.14)cg=−1V(∂V∂p)T The ...
Numerous equations-of-state have been developed in the attempt to correlate the pressure-volume-temperature variables for real gases with experimental data. In order to express a more exact relationship betweenthe variables p, V, and T, a correction factor called the gas compressibility factor, gas...