In a sealed glass container, an ideal gas is heated so that its pressure increases without breaking the glass or the seal. Which of the following is true?
A. The process is adiabatic.
B. The process is isothermal.
C. No work is done on the gas.
D. Positive work is done by the gas.
E. The process is isobaric
What happens to the efficiency of an ideal heat engine as the temperature in the hotter chamber decreases and the temperature in the colder chamber increases?
A. Efficiency approaches 100%.
B. Efficiency approaches 0.
C. Efficiency is unchanged.
D. Efficiency levels off at 50%.
E. Efficiency depends upon rate of heat flow.
To double the rms speed of an ideal gas, the Kelvin temperature must:
A. be one-fourth the original value
B. be one-half the original value
C. stay the same
D. be doubled
E. be quadrupled
At one point in a thermodynamic cycle, one mole of an ideal gas is under 100 Pa of pressure and has a volume of 2 cubic meters. What is the approximate temperature of the gas?
A. 25 K
B. 50 K
C. 100 K
D. 200 K
E. 300 K
Two hundred Joules of heat are added to an ideal gas during a process in which there is no change in pressure or volume. That heat is used by the gas to: