
(a)
Interpretation:
The reason for the fact that it is impossible to transfer heat from a cold source to the hot sink without some work done has to be stated.
Concept introduction:
The term entropy is used to represent the randomness in a system. When a system moves from an ordered arrangement to a less order arrangement, then the entropy of the system increases. The second law of
(b)
Interpretation:
The magnitude of work need to transfer heat of magnitude
Concept introduction:
The efficiency of a machine is defined as the ratio of fruitful output and total input. The efficiency of a machine is used to determine the effectiveness of the machine. When the efficiency of the machine is high, the machine is very efficient. The efficiency of a machine cannot be

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Chapter 3 Solutions
Student Solutions Manual to accompany Atkins' Physical Chemistry 11th edition
- Predicting the qualitative acid-base properties of salts Consider the following data on some weak acids and weak bases: base acid Κα Kb name formula name formula hydrocyanic acid - 10 HCN 4.9 × 10 pyridine C₂H₂N 1.7 × 10 9 acetic acid HCH3CO2 1.8 × 10 5 hydroxylamine HONH2 1.1 × 10¯ 8 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. 0.1 M KCN solution pH choose one ✓ 0.1 M C5H5NHCI choose one ✓ 0.1 M NaCH3CO2 choose one ✓ 0.1 M HONH3Br ✓ choose one 1 (lowest) 2 3 4 (highest)arrow_forwardFor this question please solve the first question. Please explain your thought process, the steps you took, and how you would tackle a similar problem. Thank you for your help!arrow_forwardPart C A solution that is 0.040 M in HCIO4 and 0.046 M in HCI Express your answer numerically to two decimal places. ΜΕ ΑΣΦ ? pH = Submit Request Answer Part D A solution that is 1.08% HCl by mass (with a density of 1.01 g/mL) Express your answer numerically to three decimal places. ΜΕ ΑΣΦ -> 0 ? pH =arrow_forward
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