(a) What is the maximum work that can be obtain from 1000J of heat supplied to a
ID: 955676 • Letter: #
Question
(a) What is the maximum work that can be obtain from 1000J of heat supplied to a steam engine with a high temperature reservoir at 100degrees Celsius if the condenser is at 20 degrees Celsius ? (b) If the boiler temperature is raised to 150 degrees Celsius by the user of superheated steam under pressure, how much more work can be obtained ? (a) What is the maximum work that can be obtain from 1000J of heat supplied to a steam engine with a high temperature reservoir at 100degrees Celsius if the condenser is at 20 degrees Celsius ? (b) If the boiler temperature is raised to 150 degrees Celsius by the user of superheated steam under pressure, how much more work can be obtained ? (b) If the boiler temperature is raised to 150 degrees Celsius by the user of superheated steam under pressure, how much more work can be obtained ?Explanation / Answer
(a) maximum work done = Q(1-T(low)/T(high))
= 1000(1-20/100)
= 800 J of work would be done
(b) When boiler temperature is raised to 150 oC
maximum work done = Q(1-T(low)/T(high))
= 1000(1-20/150)
= 866.67 J of work would be done
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