Imagine a reaction that results in a change in both volume and temperature,as shown in the diagram below.What is the sign of the work being done,and what is the sign of the enthalpy change involved in this reaction? 
Definitions:
Prepaying Bonds
The action of repaying the principal of a bond before its maturity date, often as a way to manage debt or save on interest costs.
Outstanding Bonds
Bonds issued by an entity that are currently not redeemed and are in the hands of investors.
Semiannual Interest
Interest that is calculated and paid twice a year on investments or loans.
Par Value
The nominal or face value of a stock or bond, which is the amount stated on the certificate or instrument.
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