أحد يساعدني بحل هالواجب كيمياء

السلام عليكم
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هذي أسئلة كيمياء ماعرفت أحلها.. والدكتورة قالت اخر شي يوم الثلاثاء الجاي قبل الإجازة
فياليت تساعدوني.. ولها دعوة حلوة تقولي وتبشر بعزها
يلا هذي الأسئلة
Q2. Give brief notes on the factors affecting both surface tension and evaporation.
Q3. : Write “true” or “False” for the following sentences
1. The reaction rate of given chemical reaction is directly proportional to temperature ( )
2. Increase the pressure of an gaseous reactant decrease the rate of reaction ( )
3. Evaporation is the process of conversion of a liquid into its vapours at room temperature ( )
4. The increasing of the intermolecular forces in a liquid will increase its surface tension ( )
5. Reaction rate is the change in the concentration of a product with time ( )
Q4. Consider the reaction below:
2 H2(g) + 2 NO(g) 2 H2O(g) + N2(g)
Initial rate data for this system are given below. Determine the rate law and the value of k, the rate constant (show units).
Q5. Classify the three types of solution according to their concentrations?
Q6. The solubility of pure CO2 (g) at 25oC and 1.56 atm pressure is 2.5 x 10-3 mol/L. What is the solubility of CO2 under atmospheric conditions if the partial pressure of is raised to 1.78 atm?
Q7. If 2.4875 g of KCr2O7 is dissolved in enough water to give 500 mL of solution, what is the molarity of this solution (K = 39, Cr = 24, O = 16)?
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