Answers are indicated thus: 1233.4kJ

Chemical thermodynamics - theory and applications

• J. Rankin

Solutions manual - Chapter 2 Prepared by W. J. Rankin and D. E. Langberg This workbook contains editable Excel worksheets.Before doing anything else, make a back-up copy in case you inadvertently alter a calculation.

Data required for calculation are highlighted thus:

Calculations are highlighted in blue Behind the cells containing a number is a formula

Answers are indicated thus: 1233.4kJ

This Solutions Manual is in Excel files, this pdf file is only for a short review.download link includes original Excel files clearly readable solutions.(Download Link at the end of this File) 1 / 4

Chemical thermodynamics - theory and applications Before doing anything else, make a back-up copy in case you inadvertently alter a calculation. 2 / 4

• Intensive

ii. Extensive iii. Extensive iv. Intensive

• Extensive
• A river is an open system. Heat and matter can be tranferred to and from the river.

ii. A closed system. Heat can be transferred to and from the can but matter cannot.iii. A closed system. Heat can be transferred to and from the can but matter cannot.iv. Approximates an isolated system. The insulation helps prevent transfer of heat to the contents. No matter is transferred.v An open system. Energy is transferred both to and from Earth as electromagnetic radiation.Matter is transferred to Earth in the form of dust particles, meteors, etc and light gases (He, H2) escape from the atmosphere.2.1 Which of the following properties of a system are extensive properties and which are intensive? Explain.

• The density of iron.

ii. The gravitational potential energy of a system.iii. The volume of air in a room.iv. The concentration of HCl in an acid solution.

• The number of moles in a piece of copper.

vi. The heat absorbed by bringing a beaker of water to boiling point.

2.2 Discuss each of the following situations and assess whether it approximately represents 2.2 Discuss each of the following situations and assess whether it approximately represents an isolated, a closed or an open system.

• A river.

ii. The interior of an unopened can of soda water.iii. The interior of a closed refrigerator that is switched on.iv. The interior of a closed refrigerator that is switched off.

• The Earth.

2.3 Calculate the number of moles in 100 g of each of the following substances: O 2, HCl, CuSO

4, 3 / 4

Matter is transferred to Earth in the form of dust particles, meteors, etc and light gases (He, H2) escape from the atmosphere.2.1 Which of the following properties of a system are extensive properties and which are intensive? Explain.

• The density of iron.

ii. The gravitational potential energy of a system.iii. The volume of air in a room.iv. The concentration of HCl in an acid solution.

• The number of moles in a piece of copper.

vi. The heat absorbed by bringing a beaker of water to boiling point.

2.2 Discuss each of the following situations and assess whether it approximately represents 2.2 Discuss each of the following situations and assess whether it approximately represents an isolated, a closed or an open system.

• A river.

ii. The interior of an unopened can of soda water.iii. The interior of a closed refrigerator that is switched on.iv. The interior of a closed refrigerator that is switched off.

• The Earth.

2.3 Calculate the number of moles in 100 g of each of the following substances: O 2, HCl, CuSO 4,

• / 4