Question

A system undergoes a process during which the heat transfer to the system per degree increase in temperature is given by the equation: dQ/dT = 20 kJ/°C The work done by the system per degree increase in temperature is given by the equation dW/dT = 2 – 0.1 T, where T is in °C. If during the process, the temperature of water varies from 100°C to 150°C, what will be the change in internal energy?​

Answer 1

Answer:

dQ = du + dw 

2.dt = du+(2-0.11)dt 

or∫du=∫0.1TdT=0.12x[T

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