Thermodynamics
In Young's double-slit experiment with monochromatic light, what results when one slit is covered?
Diffraction pattern disappears replaced by single-slit diffraction
Alternate bright/dark fringes get enhanced clarity
Light stops passing through completely
Double-slit interference pattern stays unchanged
What type of thermal transfer occurs primarily through mass movement within fluids (gases or liquids)?
Convection
Radiation
Adiabatic expansion
Conduction
Which one below correctly identifies a derived unit for specific heat capacity in terms of other basic units?
N/m^2
Parsec
J/kg*K
C/amo
Which variable represents work done by or on a system in thermodynamics?
F
R
I
W
What is the SI unit for pressure?
Bar
Atmosphere
Torr
Pascal
If you double both the mass and absolute temperature (in Kelvin) of an object but keep its specific heat capacity unchanged, how does this affect its thermal energy content?
It increases by a factor of eight as both doubling factors are considered exponentially.
It doubles only as temperature has a greater effect on the thermal energy than mass does.
It remains unchanged since the increase in temperature is offset by proportional increase in mass.
It quadruples because thermal energy depends directly on both mass and temperature.
When laser-based thermometers were introduced into thermodynamics experiments, how did it alter the approach to measuring temperatures related to internal energy?
They allowed for non-contact temperature measurements, which reduced the heat introduction from thermometers to the system.
The intense light from lasers interfered with molecular vibrations, causing misleading temperature readings.
Lasers coerced molecules into lower energy states, thereby artificially lowering temperature readings.
Laser thermometers increased the risk of radioactive contamination due to their high-energy beams.

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What is the SI unit of heat energy?
Joule
Pascal
Newton
Watt
How does increasing the intensity of monochromatic light incident upon a metallic surface affect photoelectron emission if the frequency is held constant and is above the threshold frequency?
No change in number or energy per photoelectron
Increases number but not energy per photoelectron
Decreases number without affecting energy per photoelectron
Increases energy but not number per photoelectron
A researcher uses calorimetry techniques enhanced by modern sensors; how does this advancement impact her work compared with traditional methods?
It makes calorimetry obsolete through direct measurement of individual particle energies instead.
Modern sensors can prevent any form of energy transfer, making insulated calorimeter containers unnecessary.
Sensors eliminate experimental error entirely, resulting in perfectly repeatable results with no variability.
It allows for real-time data acquisition providing detailed insight into energy transfer during reactions or phase changes.