Answer to Question #170118 in General Chemistry for Mary lucy Cameus

Question

For parts of the free-response question that require calculations, clearly show the method used and the

steps involved in arriving at your answers. You must show your work to receive credit for your answer.

Examples and equations may be included in your answers where appropriate.

The combustion of is represented by the equation above.

(a) Use the enthalpies of formation in the table below to calculate the value of for the reaction.

(b) The energy of the reactants is shown on the energy diagram above. On the right side of the energy

diagram, draw a horizontal line segment to indicate the energy of the products. Draw a vertical line

segment to indicate for the reaction, and label it with the correct value.

 Please respond on separate paper, following directions from your teacher.

(c) Based on the information above, identify the values that should be added together to

determine the value of for the following reaction.

 Please respond on separate paper, following directions from your teacher.

The following questions relate to the below information.

XY2 → X + Y2

The equation above represents the decomposition of a compound XY2

. The diagram below shows two reaction

profiles (path one and path two) for the decomposition of XY2

Answer 1

( a ) . Enthalpy of reaction =

Total Enthalpy of formation of product.

-

Total Enthalpy of formation of Reactant.

( b ) Enthapy is directly proportional to temperature.

( C )Dissociation of XY₂ is endothermic process .