The following formula relates the temperature in celsius (c) and the temperature in kelvins (k).
c = k − 273.15
(a) if the temperature is 23 in degrees celsius, what is the temperature in kelvins? show your work.
(b) which is greater, 300 kelvins or 25 degrees celsius? show your work.

a. K=300.15

b. 300 Kelvin is greater

Step-by-step explanation:

a. If C=23. Place it in C=k-273.15

K=C+273.15 = 27+273.15

K=300.15

b. Put C=25, K=C=273.15

K=298.15 which is lesser than 300 Kelvins

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.