You have the following substances: NH3, O2, Pt, and H2O. Arrange the following equations for the preparation of N2O from these compounds: A. Choose the correct answer from the options given below:
B. NH3(g) + HNO3(aq) → NH4NO3(aq)
C. 3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g)
D. 2NO(g) + O2(g) → 2NO2(g)
E. 
E, D, C, B, A
The correct answer is (a) E, D, C, B, A. Here's the reasoning:
1. E: The reaction 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(l) occurs at 1100K in the presence of platinum. This is the first step in the process of preparing NO, which is then used in the subsequent steps.
2. D: The reaction 2NO(g) + O2(g) → 2NO2(g) represents the oxidation of NO to NO2, which is an intermediate in the preparation of N2O.
3. C: The reaction 3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g) produces nitric acid and NO, which are part of the process.
4. B: The reaction NH3(g) + HNO3(aq) → NH4NO3(aq) forms ammonium nitrate, which is essential in the preparation process.
5. A: Finally, NH4NO3(aq) → N2O(g) + 2H2O(s) at 523K via vacuum evaporation produces N2O, which is the final product.
Important Questions from Chemical Kinetics
A first-order reaction has a half-life of 693 seconds. What will be its rate constant?
Arrange the following in increasing order of their osmotic pressure generation at 298 K:
(The cell wall is permeable to water and not to the solute molecules)
(A) If a cell containing 0.5 moles of solute dissolved in 1 L of water is immersed in pure water.
(B) If a cell containing 0.25 moles of solute dissolved in 1 L of water is immersed in pure water.
(C) If a cell containing 0.1 moles of solute dissolved in 0.01 L of water is immersed in pure water.
(D) If a cell containing 0.2 moles of solute dissolved in 0.05 L of water is immersed in pure water.
Choose the correct answer from the options given below:
Arrange the following rate constant units in increasing order of their order of reaction:
(A) sec-1
(B) mol L-1 sec-1
(C) mol-1 L sec-1
(D) mol-2 L2 sec-1
Choose the correct answer from the options given below:
Which factor in Arrhenius equation corresponds to the fraction of molecules having kinetic energy greater than activation energy?
A reaction takes 30 minutes to complete 50% of the reaction and takes 45 minutes to complete 75% of the reaction. The order of the reaction is:
