Suppose an experiment was conducted in which a solid block of subzero ice was pl
ID: 1589237 • Letter: S
Question
Suppose an experiment was conducted in which a solid block of subzero ice was placed ina thermally insulated container and heated at a constant rate from a temperature of -25°C toa temperature greater than 100°C. You should interpret the following graph of ideal experimental data. (A graph of real data would show scatter due to experimental uncertainties and deviations from constant and uniform heating.) 17-2) (a)Explain what is happening to the ice during each of the segments. A through D, of the graph. For example, a good answer for part (a) is: in segment A the temperature of the solid block of ice is increasing linearly with time from -25°C to 0°C during a two minute span of time. No ice has melted. (b) Look carefully at segment E. What do you think could be happening to the H2O during that time?Explanation / Answer
1) A : ice is absorbing heat from the source and it's temperature in increased till 0oC
2) B ; here at 0oC the latent heat of fusion (334 kj/kg) is added to the ice and ice converts into water if the total latent heat is absorbed for a certain time. then ice totally converts into water at 0oC
3) C ; temperature of water is raised linearly until 1000C
4) D; water at 1000C takes latent heat of vaporisation to convert water at 1000c into steam at 1000C
5) E; dry saturated steam is converted into super saturated steam. and it behaves like an ideal gas.