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PHYSICAL CHEMISTRY-STUDENT SOLN.MAN.
- 6) Calculate the final temperature of a sample of carbon dioxide of mass 16.0 g that is expanded reversibly and adiabatically from 500 cm³ at 298.15 K to 2.00 dm³.arrow_forwardWhen two components are present in a system, C = 2 and F = 2 - P. Select one: True O Falsearrow_forwardSnitial Sinal В Sfinal A Sanal Sfinal 13V3 Based on the image, which system has a AS of zero?arrow_forward
- write the steps in solving this using hess law. please show me the specific processarrow_forwardFor H2(g)+Br2(g)↽−−⇀2HBr(g),H2(g)+Br2(g)↽−−⇀2HBr(g), ?=7.2×10−4K=7.2×10−4 at 1362 K and Δ?∘ΔH∘ is positive. A vessel is charged with 48.2 Pa48.2 Pa HBr,HBr, 1430 Pa1430 Pa H2,H2, and 3295 Pa3295 Pa Br2Br2 at 1362 K. Will the reaction proceed to the left or right to reach equilibrium? right left Calculate the pressure (in pascals) of each species at equilibrium. ?H2= ?Br2= ?HBr= If the mixture is compressed to half of its original volume, will the reaction proceed to the left or the right to reestablish equilibrium? left neither right If the mixture is heated from 13621362 to 1421 K1421 K, will HBr be formed or consumed to reestablish equilibrium? consumed neither formedarrow_forwardThe value of trangle H for the decompisition..arrow_forward
- Why is the Q a negative if it's suppose to be positive?arrow_forward6A. State whether each of the following is true or false. Explain your reasoning in each case. (a) q must be zero for an isothermal process (b) q=0 for every cyclic process [A cyclic process is one that begins in one state and undergoes several steps which ultimately bring the system back to the same initial state.] (c) DU=0 for every cyclic process. (d) DT=0 for every adiabatic process in a closed system.arrow_forwardUse the values of AH to calulate AH for the follonng reactions. Substance and State AH (LJ/mol) Cag(PO,),(s) C&SO (s) CH,(G) HCN(9) HC(G) H,0(g) NH(9) NH,CI(s) 0,(0) HPO,(1) H,80,(1) 4126 -433 -75 135.1 -92 -242 -46 -314 -1267 -814 (2) + N OH 0O AH" b. Caa (PO), (s) + 31, SO.(1) + 3Ca$O.(s) + 2H,PO, (1) c NH3 (g) + HCIG) NH, CI(s) AH"= kJ 888arrow_forward
- 1.74. What is the ratio of the populations of two energy states whose energies differ by 1000 J at (a) 200 K (b) 500 K (C) 1000 K? What trend do you see in your answers?arrow_forwardCan i get help with this problemarrow_forwardA¡H° = 86 kJ mol-1 ,A;S = – 140 JK-1 mol-1 , T = 299 K Express your answer as an integer.arrow_forward
- Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning