When sufficiently accurate and complete measurements are available, it will be possible to set limits on the thermal and electrical characteristics of the surface and subsurface materials of the moon.

When energy is in a form other than thermal energy, it may be transformed with good or even perfect efficiency, to any other type of energy, including electricity or production of new particles of matter.

When heat is added to a thermal system, the change in entropy is the increase in mass-energy divided by temperature:

When the core temperature reaches about, the thermal energy dissociates the H < sub > 2 </ sub > molecules.

When the thermal energy is equivalent to the work done, this does not violate the law of conservation of energy.

When the turbine is used solely for shaft power their thermal efficiency is around the 30 % mark.

When dealing with a known amount of material, its thermal conductance and the reciprocal property, thermal resistance, can be described.

When thermal resistances occur in series, they are additive.

When a material undergoes a phase change from solid to liquid or from liquid to gas the thermal conductivity may change.

# When the drums are heated by hard braking, the diameter of the drum increases slightly due to thermal expansion, this means the brakes shoes have to move farther and the brake pedal has to be depressed further.

When used well and combined with passive solar design, thermal mass can play an important role in major reductions to energy use in active heating and cooling systems.

When temperatures fall at night, the walls re-radiate the thermal energy back into the night sky.

When molecules are in thermal motion, as they are in the gas and liquid phase, the electrostatic force is averaged out to a large extent, because the molecules thermally rotate and thus probe both repulsive and attractive parts of the electrostatic force.

When capsaicin is present, it alters the conformation of the SERCA, and thus reduces the ion movement ; as a result the ATP energy ( which would have been used to pump the ions ) is instead released as thermal energy.

When the sample and reference are heated identically phase changes and other thermal processes cause a difference in temperature between the sample and reference.

When a body is heated at constant temperature by thermal radiation in a microwave field for example, it may expand by an amount described by its latent heat with respect to volume or latent heat of expansion, or increase its pressure by an amount described by its latent heat with respect to pressure.

When conventional brakes are used, 100 % of the kinetic energy lost is converted to thermal energy, and dissipated in the form of heat.

When an object is at a different temperature from another body or its surroundings, heat flows so that the body and the surroundings reach the same temperature, at which point they are in thermal equilibrium.

When the pilot chooses to pull up to enter a thermal or to dive to exit a sink area, an uncompensated variometer will include the change in altitude due to the change in velocity in its read-out, thus marring the airmass ' climb or sink rate.

When the glider circles to thermal, the pilot needs to know the glider's vertical speed instead of that of the air mass.

When a planet generates a significant amount of heat internally, such as is the case for Jupiter, convection in the atmosphere can transport thermal energy from the higher temperature interior up to the surface.

When the CPU is idle, it will draw far less than the typical thermal power.

When such a processor reaches a temperature level deemed too high for safe operation, the thermal control circuit activates, automatically decreasing the clock and CPU core voltage until the temperature has returned to a safe level.

When two places trade with one another, this doctrine supposes that, if the balance be even, neither of them either loses or gains ; but if it leans in any degree to one side, that one of them loses and the other gains in proportion to its declension from the exact equilibrium.

When the partial pressure of is reduced, for example when a can of soda is opened, the equilibrium for each of the forms of carbonate ( carbonate, bicarbonate, carbon dioxide, and carbonic acid ) shifts until the concentration of in the solution is equal to the solubility of CO < sub > 2 </ sub > at that temperature and pressure.

When both firms use this logic, they will reach a Nash equilibrium.

When b is zero and A ≠ 0 the origin is an equilibrium ( or singular ) point of the flow, that is, if x < sub > 0 </ sub > = 0, then the orbit remains there.

When the process of escape and return reaches an equilibrium, the vapor is said to be " saturated ," and no further change in either vapor pressure and density or liquid temperature will occur.

When a particular substance, whether chemical or biotic — reaches unsafe levels in the bloodstream, the body can effectively dilute — or at least maintain equilibrium of — the offending substances by storing it in new fat tissue.

( ii ) When concentration of the ions is very high, the presence of charges on the ions appreciably effects the equilibrium.

When fluid flows are not in equilibrium, local pressures may be higher or lower than the average pressure in a medium.

When a substance melts and the solid and liquid phases are in an equilibrium, it maintains a constant temperature, the melting point.

* When the system is displaced from its equilibrium position, a restoring force which resembles Hooke's law tends to restore the system to equilibrium.

When the mass moves closer to the equilibrium position, the restoring force decreases.

When in static equilibrium, the system is either at rest, or its center of mass moves at constant velocity.

When this is true, the two phases will be in equilibrium, and the gas pressure will equal the equilibrium vapor pressure of the liquid ( or solid ).

When Gibbs submitted his long paper on the equilibrium of heterogeneous substances to the Academy, both Elias Loomis and Hubert Anson Newton protested that they did not understand Gibbs's work at all, but they helped to raise the money needed to pay for the typesetting of the many equations and mathematical symbols in the paper.

When force is applied, bond lengths deviate from the ( minimum energy ) equilibrium and strain energy is stored electrostatically.

When a dielectric is placed in an electric field, electric charges do not flow through the material as they do in a conductor, but only slightly shift from their average equilibrium positions causing dielectric polarization.

When a pendulum is displaced sideways from its resting equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.

When released, the restoring force combined with the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth.

When transpiration removes water at the top, the flow is needed to return to the equilibrium.

When some strong acid is added to an equilibrium mixture of the weak acid and its conjugate base, the equilibrium is shifted to the left, in accordance with Le Chatelier's principle.