Two Experimental Runs Are Performed to Determine the Calorimetric Properties

question 32

Multiple Choice

Two experimental runs are performed to determine the calorimetric properties of an alcohol that has a melting point of -10°C. In the first run, a 200-g cube of frozen alcohol, at the melting point, is added to 300 g of water at 20°C in a styrofoam container. When thermal equilibrium is reached, the alcohol-water solution is at a temperature of 5.0°C. In the second run, an identical cube of alcohol is added to 500 g of water at 20°C and the temperature at thermal equilibrium is 10°C. The specific heat of water is 4190 J/kg·K. Assume that no heat is exchanged with the styrofoam container and with the surroundings. The heat of fusion of the alcohol is closest to

• A) 5.5 × 10⁴ J/kg
• B) 6.3 × 10⁴ J/kg
• C) 7.1 × 10⁴ J/kg
• D) 7.9 × 10⁴ J/kg
• E) 8.7 × 10⁴ J/kg

Calculate the closing balance in the provision for annual leave account incorporating wage rises and leave taken.

Determine gross entitlements for employees leaving the company with untaken leave entitlements.

Recognize liabilities for short-term compensated absences based on vesting and accumulating conditions.

Familiarize with various employee benefits not covered by AASB 119/IAS 19.

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Definitions:

Lethal Force

The use of actions or weapons that are likely to cause death or serious harm as a means of enforcement or self-defense.

Police Custody

The condition of being detained by the police, typically in a police station or holding facility, after arrest and before any potential charges are made or a trial takes place.

Linear Continuum

A concept representing a sequence or range of values or properties that can be measured along a straight line, implying a progression or series of stages that are smoothly connected without abrupt changes.

Persuasive Tones

The use of language and intonation in speech or writing intended to convince or influence others.