For 10 points, name this, which gives the change in length of a one-dimensional rod in response to a change in temperature.
For an ideal gas, this quantity is equal to one over the temperature, and this quantity is multiplied by the bulk modulus and divided by the product of heat capacity and density in the definition of the Gruneisen parameter. This quantity is near zero for a single phase alloy of 36% nickel and 64% iron, called Invar. This quantity is almost zero for a material used to make really smooth mirrors, called fused quartz, and for borosilicate glass, which is why pyrex is used in laboratory settings. Converting between volumetric and linear versions of this quantity usually involves multiplying by 3, and those versions of this quantity are symbolized beta and alpha, respectively. For 10 points, name this, which gives the change in length of a one-dimensional rod in response to a change in temperature.
For an ideal gas, this quantity is equal to one over the temperature, and this quantity is multiplied by the bulk modulus and divided by the product of heat capacity and density in the definition of the Gruneisen parameter.
coefficient of thermal expansion [prompt on alpha; prompt on beta]