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Engineering Thermodynamics

Engineering Thermodynamics
The heat and work are mutually convertible. This statement is called ___ law of thermodynamics.

Zeroth
First
Third
Second

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Engineering Thermodynamics
In an isothermal process, the internal energy

Decreases
First increases and then decreases
Increases
Remain constant

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Engineering Thermodynamics
If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly

Internal energy
Temperature
Entropy
Enthalpy

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Engineering Thermodynamics
The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion)

(v1 + v2)/v2
v2/v1
(v1 + v2)/v1
v1/v2

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Engineering Thermodynamics
Water contained in a beaker can be made to boil by passing steam through it

Any pressure
At a pressure greater than atmospheric pressure
Not possible
At atmospheric pressure

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Engineering Thermodynamics
The specific heat of water is

1.817
4.187
None of these
2.512

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