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Chemistry-

General

Easy

Question

Cryoscopy is concerned with:

osmotic pressure ofa solution
elevation of boiling point of a solution
depression in freezing point of a solution
relative lowering in vapour pressure of a solution

The correct answer is: depression in freezing point of a solution

Related Questions to study

The following solutions have equal Concentrations which one will show minimum osmotic pressure?

The following solutions have equal Concentrations which one will show minimum osmotic pressure?

Chemistry-General

Given that; bond energies of H - Hand Cl - Cl are .430kJ/mol and 240 kJ/mol respectively $capital delta H subscript f end subscript text for end text H C l$ is 90 kJ/mo! Bond enthalpy of HCl is:

Given that; bond energies of H - Hand Cl - Cl are .430kJ/mol and 240 kJ/mol respectively $capital delta H subscript f end subscript text for end text H C l$ is 90 kJ/mo! Bond enthalpy of HCl is:

Chemistry-General

A body cools in a surrounding of constant temperature $30 to the power of ring operator end exponent C$ . Its heat capacity is $2 text end text J divided by blank to the power of ring operator end exponent C$ . Initial temperature of the body is $40 to the power of ring operator end exponent C$ . Assume Newton's law of cooling is valid. The body cools to $36 to the power of ring operator end exponent C$ in 10 minutes. In further 10 minutes it will cool from $36 to the power of ring operator end exponent C$ to :

A body cools in a surrounding of constant temperature $30 to the power of ring operator end exponent C$ . Its heat capacity is $2 text end text J divided by blank to the power of ring operator end exponent C$ . Initial temperature of the body is $40 to the power of ring operator end exponent C$ . Assume Newton's law of cooling is valid. The body cools to $36 to the power of ring operator end exponent C$ in 10 minutes. In further 10 minutes it will cool from $36 to the power of ring operator end exponent C$ to :

Physics-General

parallel

A triangular plate has two cavities, one square and one rectangular as shown in figure. The plate is heated.

A triangular plate has two cavities, one square and one rectangular as shown in figure. The plate is heated.

Physics-General

Three rods of equal length are joined to form an equilateral triangle ABC.D is the midpoint of AB. The coefficient of linear expansion is a1 for AB, and $alpha 2$ for AC and BC. If the distance DC remains constant for small changes in temperature:–

Three rods of equal length are joined to form an equilateral triangle ABC.D is the midpoint of AB. The coefficient of linear expansion is a1 for AB, and $alpha 2$ for AC and BC. If the distance DC remains constant for small changes in temperature:–

Physics-General

For an ideal gas $P T to the power of 11 end exponent$ = constant then volume expansion coefficient is equal to :–

For an ideal gas $P T to the power of 11 end exponent$ = constant then volume expansion coefficient is equal to :–

Physics-General

parallel

A gas is expanded from volume $V subscript 0 end subscript$ to 2 $V subscript 0 end subscript$ under three different processes. Process 1 is isobaric process, process 2 is isothermal and process 3 is adiabatic. Let $capital delta U subscript 1 end subscript$ , $capital delta U subscript 2 end subscript$ and $capital delta U subscript 3 end subscript$ , be the change in internal energy of the gas is these processes. Then :–

A gas is expanded from volume $V subscript 0 end subscript$ to 2 $V subscript 0 end subscript$ under three different processes. Process 1 is isobaric process, process 2 is isothermal and process 3 is adiabatic. Let $capital delta U subscript 1 end subscript$ , $capital delta U subscript 2 end subscript$ and $capital delta U subscript 3 end subscript$ , be the change in internal energy of the gas is these processes. Then :–

Physics-General

From the following V–T diagram we can conclude:–

From the following V–T diagram we can conclude:–

Physics-General

Four containers are filled with monoatomic ideal gases. For each container, the number of moles, the mass of an individual atom and the rms speed of the atoms are expressed in terms of n, m and v_rms respectively. If T_A , T_B ,T_C and T_D are their temperatures respectively then which one of the options correctly represents the order ?

Four containers are filled with monoatomic ideal gases. For each container, the number of moles, the mass of an individual atom and the rms speed of the atoms are expressed in terms of n, m and v_rms respectively. If T_A , T_B ,T_C and T_D are their temperatures respectively then which one of the options correctly represents the order ?

Physics-General

parallel

Two identical glass bulbs are interconnected by a thin glass tube at $0 to the power of ring operator end exponent C$ . A gas is filled at N.T.P. in these bulb is placed in ice and another bulb is placed in hot bath, then the pressure of the gas becomes 1.5 times. The temperature of hot bath will be :–

Two identical glass bulbs are interconnected by a thin glass tube at $0 to the power of ring operator end exponent C$ . A gas is filled at N.T.P. in these bulb is placed in ice and another bulb is placed in hot bath, then the pressure of the gas becomes 1.5 times. The temperature of hot bath will be :–

Physics-General

The expansion of unit mass of a perfect gas at constant pressure is shown in the diagram. Here:–

The expansion of unit mass of a perfect gas at constant pressure is shown in the diagram. Here:–

Physics-General

Pressure versus temperature graphs of an ideal gas are as shown in figure. Choose the wrong statement:–

Pressure versus temperature graphs of an ideal gas are as shown in figure. Choose the wrong statement:–

Physics-General

parallel

If $H subscript C end subscript comma H subscript K end subscript text and end text H subscript F end subscript blank$ are heat required to raise the temperature of one gram of water by one degree in Celsius, Kelvin and Fahrenheit temperature scales respectively then :–

If $H subscript C end subscript comma H subscript K end subscript text and end text H subscript F end subscript blank$ are heat required to raise the temperature of one gram of water by one degree in Celsius, Kelvin and Fahrenheit temperature scales respectively then :–

Physics-General

Two different rods A and B are kept as shown in figure. The variation of temperature of different cross sections with distance is plotted in a graph shown in figure. The ratio of thermal conductivities of A and B is

Two different rods A and B are kept as shown in figure. The variation of temperature of different cross sections with distance is plotted in a graph shown in figure. The ratio of thermal conductivities of A and B is

Physics-General

Three rods of the same dimensions have thermal conductivities $3 k comma 2 k a n d k$ . They are arranged as shown, with their ends at $100 to the power of ring operator end exponent C comma 50 to the power of ring operator end exponent C a n d 0 to the power of ring operator end exponent C$ . The temperature of their junction is: -

Three rods of the same dimensions have thermal conductivities $3 k comma 2 k a n d k$ . They are arranged as shown, with their ends at $100 to the power of ring operator end exponent C comma 50 to the power of ring operator end exponent C a n d 0 to the power of ring operator end exponent C$ . The temperature of their junction is: -

Physics-General

parallel

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