Why hydrogen and helium show positive deviations only with increase in the value of 'P'.?

Assertion : The solution of carbon tetrachloride in heptane shows positive deviation from Raoult's law. Reason : The forces of attraction between unlike molecules are stronger than those between like molecules in the solution.

From the following data show that the decomposition of hydrogen peroxide in aqueous solution is a first order reaction what is the value of the rate constant Time (t) in minutes 0 10 20 30 40 V(mL) 25.0 20.0 15.7 12.5 9.6 Where V is volume of kMnO_(4) solution required decompose a definite volume of hydrogen peroixde

A binary liquid solution is prepared by mixing n-heptane and ethanol. Which one of the following statements is correct regarding the behaviour of the solution? a)The solution is non-ideal, showing negative deviation from Raoult's Law b)The solution is non-ideal, showing positive deviation from Raoult's Law c)n-heptane shows positive deviation while ethanol shows negative deviation from Raoult's Law d)The solution formed is an ideal solution

Which of the following liquid pairs shows a positive deviation from Raoult's law?

In Haber-Bosch process ammonia is manufacture by reacting H_2 and N_2 at 700 K and 200 atmosphere pressure. N_(2(g)) + 3H_(2(g)) harr 2NH_(3(g)) , DeltaH = -92 kJ The partial pressure of N_2 , H_2 and NH_3 are 2.09, 6.55 and 1.37 atm respectively. Calculate the value of K_P . And also explain the effect of increasing temperature on the value of K_P .

Assertion: Of all the elements, helium has the highest value of first ionization enthalpy. Reason: Helium has the most positive electron gain enthalpy of all the elements.

Which of the following solutions is expected to show positive deviations from Raoult's law? a)Pyridine-formic acid b)Ethanol-cyclohexane c)Acetone-chloroform d)Hydrochloric acid-water