Work, Power and EnergyHard
Question
A carnot engine takes 3 × 106 cal of heat from a reservoir at 627oC, and gives it to a sink at 27oC. The work done by the engine is
Options
A.4.2 × 106
B.8.4 × 106
C.16.8 × 106
D.zero.
Solution
Work done by the engine while taking heat
Q = 3 × 106 cal is W = 2 × 106 × 4.2 = 8.4 × 106 J.
Q = 3 × 106 cal is W = 2 × 106 × 4.2 = 8.4 × 106 J.
Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
If the momentum of a certain body is increased by 50%, its kinetic energy will be increased by:-...An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velocity of 2 m/s. The mas...A Carnot engine, having an efficiency of as heat engine, is used as a refrigerator. If the work done on the system is 10...A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle....The changes in momentum of a particle, when the kinetic energy is increased by 0.1% will be:-...