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CHEM1832-Chemistry for Health Science (T1 2025)
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A decomposition reaction was determined to be first order.
After 627 seconds only 42.2% of the starting material was remaining.What is the half life for this reaction?
Identify which of the following spectra would be seen by the space telescope through path A.
The data in the table below were obtained for the reaction:
A + B P
| Experiment Number | [A] (M) | [B] (M) | Initial Rate (M/s) |
| 1 | 0.273 | 0.763 | 2.83 |
| 2 | 0.273 | 1.526 | 2.83 |
| 3 | 0.819 | 0.763 | 25.47 |
The order of the reaction with respect to [A] is ________
The equilibrium constant in terms of concentrations (Kc) for this reaction:
N2(g) + 3H2(g) ⇌ 2NH3(g)
equals 4.7 × 10-3. If, at equilibrium, the concentration of H2 = 5.9 mol/L and the concentration of NH3 = 4.6 mol/L, what is the equilibrium concentration of N2(g)?
OUT OF SYLLABUS of CHEM1832
Calculate the value of Kp for the reaction below given equilibrium concentrations of [NO] = 0.0080 M, [O2] = 0.014 M and [NO2] = 0.012 M at 319 K:
2NO(g) + O2(g) ⇌ 2NO2(g)
Your answer must be given to the correct number of significant figures to receive full marks.