Question Category: Mechanical Engineering

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A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is
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Which of the following is the correct statement of the second law of thermodynamics?
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A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is
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An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is
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If a system after undergoing a series of processes, returns to the initial state then
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One kg of carbon produces ________ kg of carbon dioxide.
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The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents
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If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly
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Carnot cycle efficiency is maximum when
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Addition of heat at constant pressure to a gas results in
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