The enthalpy of 1.5 kg of nitrogen gas is increased by 28 kJ during a heating process. Initially, the nitrogen temperature is 25°C. Assuming the nitrogen behaves as an ideal gas with constant specific heats, determine the final temperature of the nitrogen.
Given: m = 1.5 kg; ?H = 28 kJ; T1 = 25°C
What will be an ideal response?
For N2, cp = 1.039 kJ/kg-K at 300 K
For an ideal gas with constant specific heats: ?H = m cp (T2 – T1)
So, T2 = ?H/mcp + T1 = 43.0°C
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