Old spec Tutorial 1 Problem 4 (ENGR5003) - Revisica

Old spec Tutorial 1 Problem 4TutorialOld spec ENGR217Third8 min

ENGR217 (old spec) Thermo L6 Tutorial 1, Problem 4 official answers

A mass of 0.3 kg of saturated water is completely vaporised at a constant pressure of 75 kPa. Using steam tables, determine the volume change and the energy transferred to the water.

Formulas you may need

Saturation table at a given pressure: $v_f$ , $v_g$ , $u_{fg}$ , $h_{fg}$ (steam tables provided)
First law, closed system at constant pressure: $Q = \Delta U + p\Delta V = \Delta H$ (on the formula sheet as $\Delta u = q - w$ , $h = u + pv$ )

volume change =m^3

internal energy increase =kJ

heat transferred =kJ

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