# Mechanical Engineering - Thermodynamics

### Exercise :: Thermodynamics - Section 6

1.

The atomic mass of sulphur is

 A. 12 B. 14 C. 16 D. 32

Explanation:

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2.

A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is A. -140 kJ B. -80 kJ C. -40 kJ D. +60 kJ

Explanation:

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3.

The atomic mass of an element is the number of times the atom of that element is heavier than the hydrogen atom.

 A. True B. False

Explanation:

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4.

The mass of carbon per kg of flue gas is given by

 A. B. C. D. Explanation:

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5.

A cycle consisting of two isothermal and two isentropic processes, is known as

 A. Carnot cycle B. Stirling cycle C. Ericsson cycle D. Joule cycle