1.) Which statement is incorrect ? (a) Energy is the capacity to do work or to t

ID: 831483 • Letter: 1

Question

1.) Which statement is incorrect?

(a) Energy is the capacity to do work or to transfer heat.

(b) Kinetic energy is the energy of motion.

(d) A process that absorbs energy from its surroundings is called exothermic.

(e) The Law of Conservation of Energy is another statement of the First Law of Thermodynamics.

2. Which of the following statements about the first law of thermodynamics and energy is false?

(a)Kinetic energy cannot be converted to potential energy.

(b)Kinetic energy = 1/2mv2.

(c)All the energy in the universe is conserved.

(d)A system can never decrease its energy.

(e)Potential energy is the energy of position or composition.

3. Which one of the following thermodynamic quantities is not a state function?

(a) work (b) enthalpy (c) entropy (d) internal energy (e) free energy

1. option (D) REASON: exothermic reactions release energy in the form of heat to the surrondings .

they do not absorb energy energy absorption is done in endothetrmic ones

2. option (A) REASON : first law clearly allows interconversion of energy so kinetic energy can be easily converted into potential energy.

EXAMPLE consider a ball being thrown vertically up so at the highest point all its kinetic energy is converted into gravitational potential energy

2 option (A) REASON: work clearly is a procees function as its magnitude clearly depende on the type of process being adopted.

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