Question
Physics Question on Thermodynamics
Liquid oxygen at 50 K is heated to 300 K at constant pressure of 1 atm. The rate of heating is constant. Which of the following graphs represent the variation of temperature with time?
A
B
C
D
Answer
Explanation
Solution
Temperature of liquid oxygen will first increase in the same phase. Then, phase change (liquid to gas) will take place.
During which temperature will remain constant. After that temperature of oxygen in gaseous state will further increase.
Hence, the correct option is (c).