Use Figure 2 to determine the time taken for the stearic acid to change from a liquid to a solid.Time = ____________ seconds*1 point740 (seconds)800 (seconds)1240 (seconds

Calculate the energy transferred to the surroundings as 0.40 kg of stearic acid changed state from liquid to solid.The specific latent heat of fusion of stearic acid is 199 000 J / kg.Use the correct equation from the Physics Equations Sheet.Energy = _____________________ J*2 points0.4 (J)79 600 (J)199 00 (J)

In an experiment, the temperature of a liquid at 16.9 degrees Celsius is decreasing at a rate of 2.3 degrees Celsius per minute and the temperature of a solid at 30.7 degrees Celsius is decreasing at a rate of 6.9 degrees Celsius per minute. Enter the number of minutes it will take the liquid and solid to reach the same temperature.

22The normal working time of hot melt glue is:10 seconds20 seconds30 seconds

Student A’s results are shown in Figure 2.What was the decrease in temperature between 0 and 160 seconds?*2 points8.2 °C8.4 °C53.2 °C55.6 °C

XmL of H2 gas effuses through a hole in a container in 5 seconds. The time taken for the effusion of the same volume of the gas specified below under identical conditions is :10 seconds : He20 seconds: O225 seconds: CO55 seconds : CO2