A closed system of constant volume experiences a temperature rise of 20°C when a certain process occurs. The heat transferred in the process is 18 kJ. The specific heat at constant volume for the pure substance comprising the system is 1.2 kJ/kg°C, and the system contains 2 kg of this substance. Determine the change in internal energy and the work done.
A closed system of constant volume experiences a temperature rise of 20°C when a certain process occurs. The heat transferred in the process is 18
kJ. The specific heat at constant volume for the pure substance comprising the system is 1.2 kJ/kg°C, and the system contains 2 kg of this substance.
Determine the change in internal energy and the work done.
The specific heat at constant pressure of one kg fluid undergoing a non-flow constant pressure process is given in kJ/kg ° C by
where T is in °C. The pressure during the process is maintained at 2 bar and volume changes from 1 m3
to 1.8 m3
and temperature changes from
50°C to 450°C. Determine:
(i) Heat added (ii) Work done (iii) Change in internal energy
(ii) (iv) Change in enthalpy
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