1) If a gas is heated against a pressure, keeping the volume constant, then work done will be equal a) Zero b) - ve c) + ve d) pressure x volume e) Anywhere between zero and infinity. 2) A closed system is defined in one of the following: a) mass crosses the boundary but not the energy. b) neither mass nor energy crosses the boundaries of the system. c) both energy and mass cross the boundaries of the system. d) mass does not cross boundaries of the system, though energy may do so thermodynamic reactions take place. 3) Which of the following is an equivalent change? а) 1K 3D 1°F b) 1°C = 1°F c) 1K = 1°C d) 1K = 1°Rankine e) 1°C = 1°Rankine 4) A piston cylinder contains air at 400 kPa, 300 K and a volume of 0.35m³. A constant pressure process gives 40 kJ of work out. Find the final volume of the air. a) 0.45 m3 b) 0.03 m³ c) 0.1 m3 d) 0.05 m³ 5) Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant: a) pressure b) temperature c) volume d) internal energy e) entropy.

1) If a gas is heated against a pressure, keeping the volume constant, then work done will be equal a) Zero b) - ve c) + ve d) pressure x volume e) Anywhere between zero and infinity. 2) A closed system is defined in one of the following: a) mass crosses the boundary but not the energy. b) neither mass nor energy crosses the boundaries of the system. c) both energy and mass cross the boundaries of the system. d) mass does not cross boundaries of the system, though energy may do so thermodynamic reactions take place. 3) Which of the following is an equivalent change? а) 1K 3D 1°F b) 1°C = 1°F c) 1K = 1°C d) 1K = 1°Rankine e) 1°C = 1°Rankine 4) A piston cylinder contains air at 400 kPa, 300 K and a volume of 0.35m³. A constant pressure process gives 40 kJ of work out. Find the final volume of the air. a) 0.45 m3 b) 0.03 m³ c) 0.1 m3 d) 0.05 m³ 5) Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant: a) pressure b) temperature c) volume d) internal energy e) entropy.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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