Thermodynamics help!!!?

Posted on 2015-10-29 07:48:00 in Chemistry by ELLIE

1.) What is the difference between a state and a microstate of a system?
Check all that apply.

A) A thermodynamic state is a set of conditions, usually temperature and pressure, that defines the properties of a bulk material.
B) A thermodynamic state is a single possible arrangement of the positions and kinetic energies of the molecules.
C) A microstate is a snapshot of positions and speeds at a particular instant.
D) A thermodynamic state is a set of conditions, usually temperature, volume and number of moles, that defines the properties of a bulk material.
E) A microstate is a single possibility for all the positions and kinetic energies of all the molecules in a sample.

2) As a system goes from state A to state B, its entropy decreases. What can you say about the number of microstates corresponding to each state?
A)A has more microstates than B.
B)A has less microstates than B.
C)A has the same amount of microstates B.

In a particular spontaneous process, the number of microstates available to the system decreases. What can you conclude about the sign of ?Ssurr?
A) ?Ssurr is negative.
B)?Ssurr is positive.

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