Chemical Engineering - Chemical Engineering Basics

26.
Heat transfer by radiation from a hot body will be most rapid, if its surface is __________ because of its higher emissivity.
white & rough
black & rough
white & polished
black & polished
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
Reduction reaction involves the
loss of electrons.
increase in oxidation number.
gain of electrons.
addition of oxygen.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
Specific heat of an ideal gas depends upon its
molecular weight
pressure
temperature
volume
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
In case of compression of one kg of air, the work done will be the least, when the value of polytropic index 'n' is
1
1.4
1.5
Y = Cp/Cv
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
A __________ type pressure sensing element is commonly used in aneroid barometer.
capsule
bellow
spiral tube
flat diaphragm
Answer: Option
Explanation:
No answer description is available. Let's discuss.