Gas, as the particles have the most energy, and thus move the most.
Because The bar would become negatively charged and repel the metal ball. A magnetic north pole would be generated on the bar, and it would repel the metal ball.
Convert 278 Kelvin to Celsius
278 Kelvin (K) = 4.850000 Celsius (C)
1 K = -272.150 C
1 C = 274.150 K
More information from the unit converter
Q: How many Kelvin in 1 Celsius?
The answer is 274.150
Q: How many Celsius in 278 Kelvin?
The answer is 4.850000
