Basic Chemical Engineering Mock Test 7

1. Temperature of a system is increased with no change in internal energy, if the work done by the system is 10 Joule, what amount of heat is taken out from the system?

2. What is the latent heat for melting?

3. Ratio heat transferred from 37^oC to a colder body and from that body to – 11^oC is 2, what is the temperature of colder body if surface areas are same for all bodies?

4. Vaporization starts at which point?

5. A stone has initial potential and kinetic energy as 5 J and 20 J respectively if the final kinetic energy of the stone is 15 J what is its final potential energy?

6. A fluid is supplied to a cliff 20 m high and comes down by 5 m, what is the change in specific potential energy of fluid?

7. What is the kinetic energy of an object of mass 2 Kg and velocity 5 m/s?

8. A stone has initial potential, kinetic and internal energy 7 J, 10 J and 2x J respectively, if the final kinetic energy, potential energy and internal energy are 5 J, 21 J and x respectively, what is the final internal energy?

9. An object moved forward 10 meters and then comes back 5 meter all with a constant force of 5 N, what is the work done by the force?

10. A piston cylinder expands with some pressure, what is the work done by the system?