A 20-kg block of ?20ºC ice is submerged in a lake with water at 10ºC. After a long time, the entropy change of the universe is nearest:
A) 4 kJ/K
B) 3 kJ/K
C) 2 kJ/K
D) 1 kJ/K
D) 1 kJ/K
The heat needed to heat the ice (heating a solid), melt the ice (heat of fusion: 320 kJ/kg), and heat the melted water (heating a liquid) up to the lake temperature is
The entropy increase of the ice up to 0ºC (heating a solid), plus that due to the melting of the ice (a constant-temperature entropy change), plus that of the heating of the melted water (heating a liquid), plus the entropy change of the lake (a reservoir that lost heat) results in
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NEC 430.32(B) (1) states that any motor of 1 hp or less that is started automatically shall have a separate ____________________ device that is responsive to the motor current.
Fill in the blank(s) with the appropriate word(s).
Describe what a longitudinal engine is, what type of drive system is employed, and how these engines are usually removed.
What will be an ideal response?
Developing countries tend to speak with a single voice
Indicate whether the statement is true or false
Aspects of the swine industry that make producers the most money are reproductive efficiency, carcass quality, and:
A. Swine by-products B. Growth ability C. Barron quality D. Gilt composition