For which of the following substances, the enthalpy is the functions of temperature only

A. saturated steam
B. The enthalpy is temperature
C. independent always.
D. any gas
E. Ideal gas
F. water
G. super-heated steam
H. None​

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.