WHat is Ideal Solutions ?

Please explain Raoult’s Law as a special case of Henry’s Law ..

Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at 298 K are 200 mm Hg and 415 mm Hg respectively. (i) Calculate the vapour pressure of the solution prepared by mixing 25.5 g of CHCl3 and 40 g of H2Cl2 at 298 K and, (ii) mole fractions of each component in vapour phase.

**What is Raoult’s law ?**

What is Effect of Temperature on Solubility?

Explain the Biological phenomena of Henry’s law

If N2 gas is bubbled through water at 293 K, how many millimoles of N2 gas would dissolve in 1 litre of water. Assume that N2 exerts a partial pressure of 0.987 bar. Given that Henry’s law constant for N2 at 293 K is

76.48 kbar.

A college offers 6 courses in the morning and 4 in the evening. The number of ways a student can select exactly one course, either in the morning or in the evening?

A college offers 6 courses in the morning and 4 in the evening. The possible number of choices with the student if he wants to study one course in the morning and one in the evening is?

a mass of 3kg descending vertically downward supports a mass 2 kg by means of light string passing over a pulley at end of 5 sec the string breaks how much higher 2kg mass will go

Given two events A and B. If odds against A are as 2 : 1 and those in favour of A B are as 3 : 1, then find the range of P(B)?

Three vertices out of six vertices of a regular hexagon are chosen randomly. The probability of getting a equilateral triangle after joining three vertices is ?

If four cards are drawn at random from a pack of fifty-two playing cards, find the probability that at least one of them is an ace?

From a group of 10 persons consisting of 5 lawyers, 3 doctors and 2 engineers, four persons are selected at random. The probability that the selection contains at least one of each category is?

If the letters of INTERMEDIATE are arranged, then the odds in favour of the event that no two 'E's occur together, are ?

A bag contains 5 red and 4 green balls. Four balls are drawn at random, then find the probability that two balls are of red and two balls are of green colour?

Words are formed with the letters of the word PEACE. Find the probability that 2 E’s come together?

A coin is tossed successively three times. Find the probability of getting exactly one head or two heads?

A coin is tossed. If it shows head, we draw a ball from a bag consisting of 3 blue and 4 white balls; if it shows tail we throw a die. Describe the sample space of this experiment.

In a uniform electric field, a cube of side 1 cm is placed. The total energy stored in the cube is 8.85μJ. The electric field is parallel to four of the faces of the cube. The electric flux through any one of the remaining two faces is.

Suppose that two heat engines are connected in series, such that the heat exhaust of the first engine is used as the heat input of the second engine as shown in figure. The efficiencies of the engines are n1 and n2, respectively. The net efficiency of the combination is given by?

A charged particle oscillates about its mean equilibrium position with a frequency of Hz. The electromagnetic waves produced

A magnet is suspended in such a way when it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30 and 15 oscillations per min at a place where dip angle is 60 . Find the ratio of the total earth's magnetic field at the two places?

A 1-meter long narrow solenoid having 1000 turns is placed in magnetic meridian. Find the current in the solenoid which neutralises the earth’s horizontal field of 0.36 oersted at the centre of the solenoid

If the dip circle is set at 45 to the magnetic meridian, then the apparent dip is 30 . Calculate the true dip.

At a certain place, the horizontal component of earth's magnetic field is root times of the vertical component. What the angle of dip at that place.

Discuss the local maximum and local minimum values of f(x).

What is Solubility please explain

Calculate molality of 2.5 g of ethanoic acid (CH3COOH) in 75 g of benzene

Calculate the molarity of a solution containing 5 g of NaOH in 450 mL solution

Calculate the mole fraction of ethylene glycol (C2H6O2) in a solution containing 20% of C2H6O2 by mass

**How many Type of Solution exist , please describe **

**What is Solvent and Solute, please explain?**

**What is Solution , please explain?**

In a group of 1000 people, there are 750 who can speak Hindi and 400 who can speak English. How many can speak Hindi only ?How many can speak English ? How many can speak both Hindi and English?

A billiard ball is hit by a cue at a point distance h above the centre. It acquires a linear velocity v0. Let m be the mass and r be the radius of the ball. The angular velocity acquired by the ball is?

A simple pendulum is suspended in a lift which 5. is going up with an acceleration 5 m/s^2. An electric field of magnitude 5 N/C and directed vertically upward is also present in the lift. The charge of the bob is 1 mC and mass is 1 mg. Taking g = and length of the simple pendulum 1m, the time period of the simple pendulum is

Calculate the ratio of the speed of sound in neon to that in water vapour at any temperature. [Molecular weight of neon = 2.02 * 10–2 kg/mol and for water vapours = 1.8 * 10–2 kg/mol]

Speed of sound in air is 332 m/s at NTP. What will the speed of sound in hydrogen at NTP if the density of hydrogen at NTP is (1/16) that of air?

Silver forms ccp lattice and X-ray studies of its crystals show that theedge length of its unit cell is 408.6 pm. Calculate the density of silver (Atomic mass = 107.9 u).

X-ray diffraction studies show that copper crystallises in an fcc unit cell with cell edge of 3.608×10-8 cm. In a separate experiment, copper is determined to have a density of 8.92 g/cm3, calculate the atomic mass of copper

An element has a body-centred cubic (bcc) structure with a cell edge of 288 pm. The density of the element is 7.2 g/cm3. How many atoms are present in 208 g of the element?

What is Packing Efficiency?Explian

Atoms of element B form hcp lattice and those of the element A occupy 2/3rd of tetrahedral voids. What is the formula of the compound formed by the elements A and B?

**A compound is formed by two elements X and Y. Atoms of the elementY (as anions) make ccp and those of the element X (as cations) occupy all the octahedral voids. What is the formula of the compound?**

**What is Close Packed Structures please explain ?**

A number consists of three digits which are in G.P. the sum of the right hand and left hand digits exceeds twice the middle digit by 1 and the sum of the left hand and middle digits is two third of the sum of the middle and right hand digits. Find the numbers?

Four numbers are in A.P. If their sum is 20 and the sum of their squares is 120, then the middle terms are ?

Four different integers form an increasing A.P. One of these numbers is equal to the sum of the squares of the other three numbers. Find the numbers?