Liquid oxygen at 50 K is heated to 300 K at a constant pressure of 1 atm . The rate of heating is constant. Among the following graphs that represent the variation of temperature with time is

Question

Liquid oxygen at 50 K is heated to 300 K at a constant pressure of 1 atm . The rate of heating is constant. Among the following graphs that represent the variation of temperature with time is (A) Option 1

(B)

(C)

(D)

Tardigrade Admin · Accepted Answer

For some range of rise in temperature of liquid oxygen it will remain in the same phase. Then, its phase change ( liquid to gas) will take place. During the phase change, the temperature will remain constant. After that temperature of oxygen in gaseous state will further increase.

Q. Liquid oxygen at 50K is heated to 300K at a constant pressure of 1atm . The rate of heating is constant. Among the following graphs that represent the variation of temperature with time is

For some range of rise in temperature of liquid oxygen it will remain in the same phase. Then, its phase change ( liquid to gas) will take place. During the phase change, the temperature will remain constant. After that temperature of oxygen in gaseous state will further increase.

Q. Liquid oxygen at $50 K$ is heated to $300 K$ at a constant pressure of $1 a t m$ . The rate of heating is constant. Among the following graphs that represent the variation of temperature with time is