The production of nitric oxide is governed by the following reaction: ​ 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g). ​ If the rate at which NO is produced is 6.35 × 10−2 mol L−1s−1, at what rate is O2 consumed?

Calculate ΔS° for the following reaction: ​ 2 SO3(g) → 2 SO2(g) + O2(g). ​ ΔS° in J/moles K for SO2(g) is 248.1, for SO3(g) is 256.6, and for O2(g) is 205.0.

According to the differential rate law: rate = k[X]m[Y]n. If m = 2 and n = 1, the overall reaction order is:

If a 5.0 L flask holds 0.125 moles of nitrogen at STP, what happens to the entropy of the system upon cooling the gas to -75 °C?

Consider the following reaction for production of ammonia via the Haber process: 3H2 + N2 → 2NH3. Which of the following expressions best illustrates the rate of reaction?

3. Evaluate the integral by reversing the order of integration: 

8.  Evaluate the iterated integral:  

4. Evaluate the integral,

7.  Find the area of the part of the surface of that lies within the cylinder .

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