The Internal Energy of an Ideal Gas Is Changed by Adding

question 29

Multiple Choice

The internal energy of an ideal gas is changed by adding heat Q to the system and also by doing work W on the gas. What is the change in internal energy of the gas?

• A)4.186Q - W
• B)Q - 4.186W
• C)W - Q
• D)Q + W
• E)Q - W

---

Definitions:

FMVSS-121

The Federal Motor Vehicle Safety Standard addressing air brake systems in heavy-duty vehicles to ensure safety through performance requirements.

Service Brake Circuit

The network of components, including lines, valves, and actuators, that allows a vehicle to decelerate or stop by hydraulic or mechanical means.

Charged with Air

Typically refers to pneumatic systems or equipment that has been pressurized with air for operation or use.

Trolley Valve

A valve used in air brake systems on trucks and trailers, allowing the driver to control the trailer brakes independently.