In a Certain Thermodynamic Process,20 Cal of Heat Are Removed

question 73

Multiple Choice

In a certain thermodynamic process,20 cal of heat are removed from a system and 30 cal of work are done on the system.The internal energy of the system

• A)increases by 10 cal.
• B)decreases by 10 cal.
• C)increases by 50 cal.
• D)decreases by 50 cal.
• E)decreases by 20 cal.

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Definitions:

Urethra

A tube that connects the urinary bladder to the urinary meatus for the removal of fluids from the body.

Renin

An enzyme secreted by the kidneys that plays a key role in regulating blood pressure by converting angiotensinogen to angiotensin.

Angiotensin II

A potent vasoconstrictive peptide that plays a critical role in blood pressure regulation and fluid balance.

Blood Pressure

The force exerted by circulating blood upon the walls of blood vessels, often measured to assess heart and blood vessel health.