Question

A piece of ice is floating in a concentrated solution of common salt (in water) in a pot. When ice melts completely, the level of solution will

• A. Go up
• B. Remain the same
• C. Go down
• D. First go up then go down

Answer 1

The correct option is A Go up

${\rho }_{saltwater0}>{\rho }_{ice}$

When ice floats, volume of ice in the salt water is given by

$V_{imm}{\rho }_{saltwater}g=V_{ice}{\rho }_{ice}g$

$⟹V_{imm}=V_{ice}\frac{{\rho }_{water}}{{\rho }_{saltwater}}<V_{ice}$
Hence when ice melts, whole of the volume would add to water and level of solution would rise.