Consider the decomposition of calcium carbonate shown below. Which of the follow
ID: 1071990 • Letter: C
Question
Consider the decomposition of calcium carbonate shown below. Which of the following statements correctly describes this reaction as it occurs in a test tube? CaCO_3(s) + 42.5 kcal rightarrow CaO(s) + CO_2(g) The test tube would feel warm, since the reaction would absorb heat from the surroundings. The test tube would fool cold, since the reaction would absorb heat from the surroundings. The test tube would feel cold since the reaction would release heat to the surroundings. The test tube would feel warm, since the reaction would release heat to the surroundings. It K impossible to predict without actually performing the experiment.Explanation / Answer
For the given reaction of decomposition of CaCO3 to CaO and CO2 by absorbing heat, the statement describing this reaction would be,
-The tube would feel cold, since the reaction would absorb heat from the surrounding