Two Experimental Runs Are Performed to Determine the Calorimetric Properties

question 18

Multiple Choice

Two experimental runs are performed to determine the calorimetric properties of an alcohol which has a melting point of -10.0° C.In the first run,a 200-g cube of frozen alcohol,at the melting point,is added to 300 g of water at 20.0°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 20.0°C and the temperature at thermal equilibrium is 10.0°C.The specific heat capacity of water is 4190 J/kg ∙ K.Assume no heat is exchanged with the styrofoam container and the surroundings.What is the heat of fusion of the alcohol?

• 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

Define class and class consciousness according to Marx and apply these concepts to contemporary Canadian society.

Compare absolute and relative poverty definitions and express a reasoned preference.

Discuss the role of human, social, and cultural capital in determining societal rewards.

Evaluate Marxist, Weberian, and Functionalist perspectives on stratification and their implications for understanding societal classes and poverty.

---

Definitions:

Chance

The occurrence of events in the absence of any obvious intention or cause.

Naturalistic Observation

A research method in which subjects are observed in their natural environment without any manipulation by the researcher.

Laboratory Observation

A research method in which subjects are observed in a controlled environment to ensure consistency and control over variables.

Exploratory Research

A type of research designed to investigate a problem or situation when there are few or no earlier studies to refer to.