Chemistry-
General
Easy
Question
Agasis allowed to expand under reversible adiababatic conditions what is zerofor such a process-
- ΔG=0
- ΔT=0
- ΔS=0
- None of these
The correct answer is: None of these
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A wire is in the form of a tetrahedron shown in figure. The resistance of each wire is r. What is the resistance of he frame between the comers A and B.
A wire is in the form of a tetrahedron shown in figure. The resistance of each wire is r. What is the resistance of he frame between the comers A and B.
physicsGeneral
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Calculate enthalpy of vapourization per mole of ethanol. Given ΔS=109.8JK–1mol–1andB.pt.of
ethanolis78.5°C.
Calculate enthalpy of vapourization per mole of ethanol. Given ΔS=109.8JK–1mol–1andB.pt.of
ethanolis78.5°C.
chemistry-General
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The enthalpy of vaporisation of per mole of ethanol (b.p.=79.5°CandS=109.8JK–1mol–1)is-
The enthalpy of vaporisation of per mole of ethanol (b.p.=79.5°CandS=109.8JK–1mol–1)is-
chemistry-General
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In the above question, after appropriate conditions are made, it is found that no deflection takes places in the galvanometer where the sliding jockey touches the wire at a distance of from . What is the value of the resistance X?
In the above question, after appropriate conditions are made, it is found that no deflection takes places in the galvanometer where the sliding jockey touches the wire at a distance of from . What is the value of the resistance X?
physicsGeneral
physics
A thin uniform wire AB of length 1 m, an unknown resistance X and a resistance of 
are connected, by thick conducting strips as shown in figure. A battery and a galvanometer (with a sliding jockey connected to it) are also available. Connections are to be measure the unknown resistance using the principle of Wheatstone bridge. The appropriate connections are.
(E is the balance point for whetstone bridge)
A thin uniform wire AB of length 1 m, an unknown resistance X and a resistance of are connected, by thick conducting strips as shown in figure. A battery and a galvanometer (with a sliding jockey connected to it) are also available. Connections are to be measure the unknown resistance using the principle of Wheatstone bridge. The appropriate connections are.
(E is the balance point for whetstone bridge)
physicsGeneral
physics
Two liquids of equal volume are thoroughly mixed. If their specific heat are 
, temperatures 
and densities 
respectively. What is the final temperature of the rrixture?
Two liquids of equal volume are thoroughly mixed. If their specific heat are , temperatures and densities respectively. What is the final temperature of the rrixture?
physicsGeneral
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For which reaction from the following,ΔSwill be maximum?
For which reaction from the following,ΔSwill be maximum?
chemistry-General
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Onheating128gofoxygengasfrom0°Cto100°C,CV and CP on an average are 5 and7calmol degree the value of ΔE and ΔH are respectively-
Onheating128gofoxygengasfrom0°Cto100°C,CV and CP on an average are 5 and7calmol degree the value of ΔE and ΔH are respectively-
chemistry-General
chemistry-
Forareaction2X(s)+2Y(s)→2C(
)+D(g) The q at27°Cis–28KCal.mol–1. The qv is.......... K. Cal. mol–1
Forareaction2X(s)+2Y(s)→2C()+D(g) The q at27°Cis–28KCal.mol–1. The qv is.......... K. Cal. mol–1
chemistry-General
chemistry-
For which of the following reactions ΔH is less than ΔE-
For which of the following reactions ΔH is less than ΔE-
chemistry-General
chemistry-
For which change ΔH≠ΔE–
For which change ΔH≠ΔE–
chemistry-General
chemistry-
Which is true for the combustion of sucrose (C12H22O11)at25°C-
Which is true for the combustion of sucrose (C12H22O11)at25°C-
chemistry-General
physics
The temperature of equal mases of three different liquids X,Y, zare 
and 
respectively The temperature when X and Y aremixed is 
and when Y and Z are mixed is 
what is the temperature when X and Z are mixed?
The temperature of equal mases of three different liquids X,Y, zare and respectively The temperature when X and Y aremixed is and when Y and Z are mixed is what is the temperature when X and Z are mixed?
physicsGeneral
physics
For which value of the temperature will the values of Fahrenheit scale and Kelvin scale be equal?
For which value of the temperature will the values of Fahrenheit scale and Kelvin scale be equal?
physicsGeneral
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On a hot day at Ahmedabad a trucker loaded 37,000 L of diesel fuel. He delivered the diesel at Srinagar (Kashmir) Where the temperature was lower then that of Ahmedabad by 23K . How many liters did he deliver ?For diesel y=3a=
(Neglect the thermal expansion/ Contraction of steel tank of the trunk)
On a hot day at Ahmedabad a trucker loaded 37,000 L of diesel fuel. He delivered the diesel at Srinagar (Kashmir) Where the temperature was lower then that of Ahmedabad by 23K . How many liters did he deliver ?For diesel y=3a=(Neglect the thermal expansion/ Contraction of steel tank of the trunk)
physicsGeneral
