Chemical Engineering - Chemical Engineering Basics

26. 

A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

A. -0.8
B. 0.8
C. +0.08
D. -0.24

Answer: Option D

Explanation:

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27. 

The quantity of electricity required to deposit one gm equivalent of any substance is one

A. ampere
B. coulomb
C. microfaraday
D. faraday

Answer: Option D

Explanation:

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28. 

Surface tension is due to the __________ forces.

A. viscous
B. adhesive
C. cohesive
D. difference between adhesive & cohesive

Answer: Option D

Explanation:

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29. 

At absolute zero temperature, for any reaction involving condensed phases

A. Δ G° = 0 , Δ H° = 0
B. Δ H° = 0 , Δ S° = 0
C. Δ S° = 0 , Δ E° = 0
D. Δ S° = 0 , Δ Cp° = 0

Answer: Option C

Explanation:

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30. 

Metals in general have a low value of thermal

A. conductivity
B. diffusivity
C. inertia
D. all (a), (b) & (c)

Answer: Option C

Explanation:

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