In the above paper, the energy equation (see Eq. (3) in Ref. [1]) is as follows:
$∂T∂t+u∂T∂x+v∂T∂y=1ρcp∂∂y(κ∂T∂y)+Φρcp$
(1)

where $T$ is the fluid temperature, $t$ is the time, $u$ and $v$ are the velocity components in the $x$ and $y$ directions, respectively, $ρ$ is the fluid density, $cp$ is the specific heat, $κ$ is the thermal conductivity, and $Φ$ is the heat source.

The units of temperature are
$[T]=Kelvin (temperature)$
The units of time are
$[t]=sec(time)$

Therefore, the units of $(Φ/ρcp)$ are $K s−1$ in order...

## Reference

Reference
1.
Mabood
,
F.
,
Abdel-Rahman
,
R. G.
, and
Lorenzini
,
G.
,
2016
, “
Numerical Study of Unsteady Jeffery Fluid Flow With Magnetic Field Effect and Variable Fluid Properties
,”
ASME J. Therm. Sci. Eng. Appl.
,
8
(
4
), p.
041003
.