1 Which one of the following statement is correct O When ice melts, its volume i

Question

1 Which one of the following statement is correct O When ice melts, its volume increases O Increase in pressure, decreases the boiling point of water O Decrease in pressure over ice decreases its melting point O Decrease in pressure over ice increases its melting point 2. Electric flux isa O Vector quantity O Scalar quantity OBoth scalra nad vector quantity O Dimensionless An air bubble of volume 1.0x10A-6 m3 is at a depth of 40 m below the surface of a lake where temperature is 283K. What will be the volume of this air bubble when it just reach the surface of the water where tempertaure is 27°C O 5.07x10-8 m3 O 5.07x10 -6 m3 O 50.7x10-6 m3 O 507x10^-6 m3

Explanation / Answer

1 decrese in pressure over ice increase the melting point so this is correct

Since density of water is more than density of ice so when ice melt its volume decreases so this is wrong

now by le chatlier

increase in pressure increase the boiling point so not coreect

decrese in pressure decrease the melting point in general but since water contract after melting so this is exception so this is incorrect

2 scalar quantity

Electric flux is dot product of area and electric field so it is a scalar

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