Examlex

Solved

A Substance Has a Melting Point of 20°C and a Heat

question 34

Multiple Choice

A substance has a melting point of 20°C and a heat of fusion of 3.6×104 J/kg3.6 \times 10^4 \mathrm {~J} / \mathrm { kg } The boiling point is 150C150 ^ { \circ } \mathrm { C } and the heat of vaporization is 7.2×104 J/kg7.2 \times 10^4 \mathrm {~J} / \mathrm { kg } at a pressure of one atmosphere. The specific heats for the solid, liquid, and gaseous phases are 600 J/kg ∙ K (solid) , 1000 J/kg ∙ K (liquid) , and 400 J/kg ∙ K (gaseous) . How much heat is given up by 2.80 kg2.80 \mathrm {~kg} of this substance when it is cooled from 170°C to 86°C at a pressure of one atmosphere?

Understand the role of marketing and marketing objectives in business planning.
Recognize the importance of a well-designed business plan in proactive business management.
Identify the elements and purpose of the marketing plan section of a business plan.
Understand the significance of demographic analysis in market targeting.

Definitions:

Virtue-Based

A moral philosophy that emphasizes the role of character and virtue in moral reasoning and ethical decision making.

Slave Morality

A concept in Nietzsche's philosophy contrasting master morality, suggesting that moral values originated in the oppressed, lower class and focus on virtues like humility and sympathy, as opposed to the aristocratic values of pride and power.

Master Morality

A concept from the philosophy of Friedrich Nietzsche that values pride, strength, and nobility as qualities of the "master," as opposed to the "slave" morality, which values kindness, empathy, and sympathy.

Nietzsche

Friedrich Nietzsche was a German philosopher, cultural critic, poet, and philologist known for his critique of traditional morality and religion, as well as for his concept of the "will to power."

Related Questions