engineering recuitment GATE ME 2023-24 Test Series Heat Transfer Conduction General Heat Conduction Equation
The temperature distribution at a certain instant of time in a slab during a process is given by T = 2x2 + x + 5, where x is in cm and T is in K. If the thermal diffusivity is 0.0002 cm2/s, the rate of change of temperature with time is given by:
1
0.0008 K/s
2
0.0004 K/s
3
- 0.0004 K/s
4
- 0.0008 K/s