Chemistry-
General
Easy
Question
At 
C, pure water has 
. The value of K w at Cis
The correct answer is:
Related Questions to study
Maths-
If 
for all x,y and 
then the number of solution of 
is
If for all x,y and then the number of solution of is
Maths-General
Maths-
Let 
where 
denotes the greatest integer function.Then 
is equal to
Let where denotes the greatest integer function.Then is equal to
Maths-General
Maths-
If 
is defined by 
the fractional part of x then 
If is defined by the fractional part of x then
Maths-General
Chemistry-
The dissociation constant of acetic acid is 
and that of ammonium hydroxide is also 1.8 x 10-5 at 25°C. Hence, an aqueous solution of ammonium acetate is:
The dissociation constant of acetic acid is and that of ammonium hydroxide is also 1.8 x 10-5 at 25°C. Hence, an aqueous solution of ammonium acetate is:
Chemistry-General
Chemistry-
Which one of the following solutions will have the highest pH value?
Which one of the following solutions will have the highest pH value?
Chemistry-General
Chemistry-
Given that the dissociation constant for water is Kw: 
. The pH of a 0.001 molar KOH solution is:
Given that the dissociation constant for water is Kw: . The pH of a 0.001 molar KOH solution is:
Chemistry-General
Physics-
A diatomic ideal gas is used in a Carnot engine as the working substance. If during the adiabatic expansion part of the cycle the volume of the gas increases from V to 32 V, the efficiency of the engine is
A diatomic ideal gas is used in a Carnot engine as the working substance. If during the adiabatic expansion part of the cycle the volume of the gas increases from V to 32 V, the efficiency of the engine is
Physics-General
Physics-
A mass of diatomic gas(y=1.4) at a pressure of 2 atmospheres is compressed adiabatically so that its temperature rises from 27C
to 927C.The pressure of the gas in final state is
A mass of diatomic gas(y=1.4) at a pressure of 2 atmospheres is compressed adiabatically so that its temperature rises from 27C to 927C.The pressure of the gas in final state is
Physics-General
Physics-
A system goes from A to B via two processes I and II as shown in figure .If 
U1and if U2 are the changes in internal energies in the processes I and II respectively, then the relation between If U1andIf U2is
A system goes from A to B via two processes I and II as shown in figure .If U1and if U2 are the changes in internal energies in the processes I and II respectively, then the relation between If U1andIf U2is
Physics-General
Physics-
A refrigerator works between 4°C and 30°C. It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is: (Take 1 cal =4.2joule)
A refrigerator works between 4°C and 30°C. It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is: (Take 1 cal =4.2joule)
Physics-General
Physics-
An insulated container of gas has two chambers separated by an insulating partition. One of the chambers has volume V1and contains ideal gas at pressure P1 and temperature T1 The other chamber has volume V2 and contains ideal gas at pressure P2 and temperature T2. If the partition is removed without doing any work on the gas, the final equilibrium temperature of the gas in the container will be
An insulated container of gas has two chambers separated by an insulating partition. One of the chambers has volume V1and contains ideal gas at pressure P1 and temperature T1 The other chamber has volume V2 and contains ideal gas at pressure P2 and temperature T2. If the partition is removed without doing any work on the gas, the final equilibrium temperature of the gas in the container will be
Physics-General
Physics-
Carbon monoxide is carried around P K to1000K in going from a to b. The quantity of heat rejected by the gas during the process ca is
Carbon monoxide is carried around P K to1000K in going from a to b. The quantity of heat rejected by the gas during the process ca is
Physics-General
Physics-
The relation between U,P and V for an ideal gas in an adiabatic process is given by relation U = a+ b P V. Find the value of adiabatic exponent 
of this gas
The relation between U,P and V for an ideal gas in an adiabatic process is given by relation U = a+ b P V. Find the value of adiabatic exponent of this gas
Physics-General
Physics-
Two rods of the same length and diameter having thermal conductivities K1 and K2 are joined in parallel. The equivalent thermal conductivity of the combination is
Two rods of the same length and diameter having thermal conductivities K1 and K2 are joined in parallel. The equivalent thermal conductivity of the combination is
Physics-General
Chemistry-
If the solubility of lithium sodium hexafluoro aluminate, Li3Na3 (AlF6 his' S' mol L-1, its solubility product is equal to:
If the solubility of lithium sodium hexafluoro aluminate, Li3Na3 (AlF6 his' S' mol L-1, its solubility product is equal to:
Chemistry-General
