A simple model was setup to find the mass variation over time for a Schwarzschild black hole. The temperature and entropy of a black hole was obtained from the numerically solved mass variation and the time variations of the black hole thermodynamic parameters were simulated. The mass of a given black hole reduces rapidly. The time taken for a black hole to vanish increases in an increasing rate with the given initial mass of the black hole. The temperature of a black hole drastically increases at the final stage of the black hole evaporation. The colour attributed to that temperature was found to be in the visible region for a significant amount of time. The black hole entropy also drastically reduces with its mass and through Hawking radiation it is added to the rest of the universe.
International Letters of Chemistry, Physics and Astronomy (Volume 48)
K.A.I.L. Wijewardena Gamalath and N.S. Rajapakse, "Thermodynamics of a Black Hole", International Letters of Chemistry, Physics and Astronomy, Vol. 48, pp. 123-137, 2015