$A$ block of ice at $-10^{\circ} C$ is slowly heated and converted to steam at $100^{\circ} C$. Which of the following curves represent the phenomenon qualitatively:

What are vaporization and boiling point? Explain the process of boiling of water.

Liquid oxygen at $50\ K$ is heated to $300\ K$ at a constant pressure of $1\ atm$. The rate of heating is constant. Which of the following graphs represents the variation of temperature with time?

$A$ block of ice at $-10^{\circ}C$ is slowly heated and converted to steam at $100^{\circ}C$. Which of the following curves represents the phenomenon qualitatively?

Liquid oxygen at $50\ K$ is heated to $300\ K$ at a constant pressure of $1\ atm$. The rate of heating is constant. Which of the following graphs represents the variation of temperature with time?

$A$ solution consists of ether and $5.0 \ g$ of water at $0^{\circ} C$. If the ether evaporates completely to freeze the water,then the mass of the ether in the solution is (in $g$)