It is possible to decrease the entropy of a system locally without doing work on the system
What will be an ideal response?
This is not possible. The only way to reduce entropy locally is to do work on the
system from outside.
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A bicycle pump contains air at one atmosphere and 0°C. As the tire is pumped up, the volume of air decreases by 50% with each stroke. What is the new pressure of air (in atm) in the chamber after the first stroke, assuming no temperature change?
a. 2 b. 1 c. 0.5 d. 0.1 e. 3
Because they all involve formation of iron in cores of massive stars, all type II supernovae are equally luminous
Indicate whether the statement is true or false
Long-period comets are believed to come from ______________
a. the Oort cloud b. interstellar space c. the asteroid belt d. the Great Red Spot
The Sun reaches its most southern point at the _____
A) vernal equinox B) winter solstice C) summer solstice D) autumnal equinox