Menti Questions Unit 3

Front

What happens to the volume of a gas when work is done on/by the gas?

Back

The volume of a gas must change if work is done on/by the gas.

Front

Is it true that the pressure of a gas must remain constant for work to be done on the gas?

Back

False. The pressure of a gas does not need to remain constant for work to be done.

Front

During an isobaric expansion of an ideal gas, what is the work done by the gas proportional to?

Back

The work done by the gas is proportional to the change in volume.

Front

How do you convert 98.6 degrees Fahrenheit to Kelvin?

Back

98.6 degrees Fahrenheit is equivalent to 310 K.

Front

If two objects of different masses made of the same material are heated equally, which will have a greater temperature change?

Back

The smaller mass will have a greater temperature change.

Front

Define isobaric process in thermodynamics.

Back

An isobaric process is a thermodynamic process in which the pressure remains constant.

Front

What is the formula for calculating work done by a gas during expansion?

Back

Work done (W) = Pressure (P) × Change in Volume (ΔV).

Front

Explain the concept of specific heat capacity.

Back

Specific heat capacity is the amount of heat required to raise the temperature of one kilogram of a substance by one degree Celsius.

Front

What is the relationship between temperature change and mass in heating objects?

Back

For equal heat added, the temperature change is inversely proportional to the mass of the object.

Front

What is the ideal gas law?

Back

The ideal gas law is PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature.