Indicate I for True or E for False? rimthe same fo-gases in the ter tero tressur
ID: 543837 • Letter: I
Question
Indicate I for True or E for False? rimthe same fo-gases in the ter tero tressure gases have the same density at 1 aten ad 2s- the absolute temperature of an oal gas at ied ome and amount of gaswa double the presse 6) A systom containing only one substance The aV work in a mechanicalil y reversible procoss in a closed system aways equals-P 8) Equation J R stands for every reversible process in an ideal g_ 9) For every process, AUsystsurr 10) For every cyclic process, the final state of the system is the same as the 11) If systems A and B are such that TA > Ta then heat flows 12) tihe initial stae Ta. ther If systems A and B each consist of pure liquid water at 1 bar pressure and it T the internal energy of system A must be greater than that of B 13) The quantities U Pv.au, and Pa V all have the same dimensions 14) When Joule-Thompson coefficient is negative then when gas is expanded to lower pressure at constant enthalpy it heats 16) H=qP 17) Real gas approaches ideal gas behavior at low pressures 18) Real gas approaches ideal gas behavior when T-Tewers on. 19) Given the sarme start and end points, Mirrew.l > wrev 1 in compression. 20) Given the same start and end points, (Wirrev.J in compression Wirrev in expansion.Explanation / Answer
1.From the ideal gas equation,
P=nRTVP=nRTV
Now assuming the gas is uniformly distributed over space (has constant density for a given temperature), halving the number of moles will divide the volume by the same amount. Essentially, if we divide the number of moles by any number, we will end up dividing the volume by the same number to maintain constant temperature. So it doesn't matter how many moles of gas you take at a given temperature, you will always end up with the same pressure. You could also look at it as ratio of two extensive quantities will always give an intensive quantity.
Answer : T
2.extensive property depends on the quantity of matter.
Hence mole fraction is extensive property
Answer : F
3. The ratio give constant to all gases
Hance answer : T
4. As all gases that are behaving ideallyhave the same number density, they will all have the same molar volume. AtSTP this will be 22.4 L
Answer : T
5. P is proportional to T
Answer : T