With a gas thermometer, T can be measured...(A). from less than 10 K(B). from 273.15 K(C). from 100°C (at p = 1 atm).(D). from the T of the triple point of water
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With a gas thermometer, T can be measured...
(A). from less than 10 K
(B). from 273.15 K
(C). from 100°C (at p = 1 atm).
(D). from the T of the triple point of water
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- At the critical point for carbon dioxide, the substance is very far from being an ideal gas. Prove this statement by calculating the density of an ideal gas in g/cm3 at the conditions of the critical point and comparing it with the experimental value. Compute the experimental value from the fact that a mole of CO2 at its critical point occupies 94 cm3.7.0 ...] Assuming 4Hfusion is constant, find the pressure necessary to lower the freezing temperature of water to -10.000 °C. The density of water and ice are 0.917 and 1.000 g cm-³.You add 28 g of ice (H2O) at 0°C to 179 g of H20 (I) at 63°C at a constant pressure of 1.01 kPa. Calculate the final temperature in K. [AfusH°(H20) = 6.01 kJ mol""; Tfus=273.15 K; Cp.m(H20,)=75.3 J mol Kl; m(H20)=18.02 u].
- A gas mixture contains 4.5 mol Br, and 33.1 mol F,. (a) Compute the mole fraction of Br, in the mixture. (b) The mixture is heated above 150°C and starts to react to give BrFs: Br2(g) + 5 F2(g) –→ 2 BrF;(g) At a certain point in the reaction, 2.2 mol BrF5 is present. Determine the mole fraction of Br2 in the mixture at that point.I need the answer as soon as possibleWhat is the temperature in K of 0.795 mole of neon in a 2.00 L vessel at 4.32 bar? R = 0.08314 L･bar/mol･K.
- A 0.516 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) + H,SO,(aq) MSO,(aq) + H,(g) A volume of 223 ml. of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr, and the temperature is 25 "C. The vapor pressure of water at 25 "C is 23.8 Torr. Calculate the molar mass of the metal. g/mol molar mass:53. Given the critical pressure, Pc, and the critical pressure, Tc, for CO2 are 73.75 bar and 304.13 K, respectively. (i) Assuming CO2 is an ideal gas, CALCULATE the critical volume, Vc. (ii) Assuming CO2 is a van der Waals gas, CALCULATE Vc. (iii) Assuming CO2 is a Redlich-Kwong, CALCULATE Vc. (iv) COMPARE the obtained Vc values in (i)–(iii) with that of the true Vc value; that is 0.09407 L.
- (6) Calculate the molar volume of carbon dioxide at 400 K and 30 atm, given that the second virial coefficient (B) for CO2 is -0.0605 L•mol-1. Compare the result with that obtained using the ideal-gas law.An experiment is conducted in which a quantity of H2(g) is chemically generated in a closed headspace of volume V1 at absolute temperature T1, thereby raising the total pressure from Pa (the initial air pressure) to Pf (the total final pressure of H2(g) + air). Compose an algebraic expression for the volume (V2) that this sample of H2(g) would occupy if it were isolated (pure -- i.e. no air) at absolute temperature T2 and partial pressure P2. Note that your expression may contain no other variables than those given above, namely: V1, T1, T2, Pa, Pf, and P2. A) V2 = Now, suppose that the above experiment generated n mol of H2(g), that T2 = 0 °C and that P2 = 1 atm. Give the simple algebraic expression, in terms of V2 and n, which equates to the molar volume of H2(g) at STP. B) VM =An experiment is conducted in which a quantity of H2(g) is chemically generated in a closed headspace of volume V1 at absolute temperature T1, thereby raising the total pressure from Pa (the initial air pressure) to Pf (the total final pressure of H2(g) + air).Compose an algebraic expression for the volume (V2) that this sample of H2(g) would occupy if it were isolated (pure -- i.e. no air) at absolute temperature T2 and partial pressure P2.Note that your expression may contain no other variables than those given above, namely: V1, T1, T2, Pa, Pf, and P2.
